Ford 4.2L V6 Hydrolock and IMRC fix [1080 HD]

[@vidyagames2220]

Had a coolant leak with no visible leaks, found out it was this problem. Used your video and I was able to do this entire job myself on my 99’ 4.2l f150. I’d never done anything this complicated mechanically before so it took me 8 hours but I saved close to $1000. Thank you man this video is great and shows everything. I labeled every vacuum hose and connection with colored markers for putting it all back together and that really helped.

[@bryanthibodeau9719]

Just wanted to say thanks. a Month ago i went out to start my 98-f150 4.2 and the engine would not budge(had seen/smelt some coolant for a few weeks off and on in the exhaust). I pulled all the spark pluggs and yup, cylinder number 4 was full of coolant. Must have watched this video atleast 20 times, learned alot, made lots of mistakes but a month later finished it today, all good now, followed all your directions. Again, thanks for making this video could not have done it with out it. I went over board and replaced all rubber hoses, thermostat, injector rings, valve cover gaskets, and of course, the felpro intake gasket set. Cleaned it all up like crazy. Looks great now.

[@Jafromobile]

bryan thibodeau Thanks Bryan! Your example proves exactly the reason why I do this. All you needed was a nudge in the right direction. You feel good about your accomplishment. You paid me with your gratitude, and that's all I could ever ask for. Thank you for being a cool enough dude to express it! ;)

[@hectorbls1]

Hands down the best car repair video I have ever seen. Usually it's someone with a phone camera and the picture quality is horrendous. Kudos to you!

[@richmontes3156]

Really thoughtful way of putting video together with fast motion segments! Too many youtube video waste a lot of viewers time with useless talking, you didn't! Most thoughtful of you!

[@Jafromobile]

I still do a lot of useless talking, so don't give me too much credit. It's never slow or light material, though. I try to respect everyone's time even though my average videos are still longer than sitcoms.

[@justinbourne1122]

Big thanks for making this video, I just performed this job on my ford 4.2 and had this video on my laptop in the garage through the process, probably wouldn't have been able to do it without such a detailed resource

[@Jafromobile]

+Justin Bourne Wow! Really? You did that? It's better than a service manual then? How's she running a month later? ;) Don't you feel like you just saved yourself $1,500?

[@justinfontenot3930]

Thank u for taking the time to document this step by step. Somehow i managed to go 245k on stock gaskets, got out of it one day and smelt antifreeze, thank God it leaked outside of the block. I went ahead and did valve cover gaskets and the thermostat like u recommend, new vacuum hoses and injector o-rings. Your awesome, this is one of the best tutorial videos I've seen, thank u once again. Made me think i Could do it only being 19 and never touching engine work.

[@Jafromobile]

:) Way to go, man! Give yourself a huge pat on the back! You took it even further than I did. I really feel like this video is some of the worst production quality, especially where the audio track is concerned. I agree the material is great... and I knew it was a common problem that would help others... but all my other videos were about a different platform so I was afraid my subscribers would be upset if I posted this. I remember being reluctant but determined to upload it. It still remains one of my most popular, and I regret not having spent more time on the audio track. You'll see I figured it out in future videos. Making this video taught me a lot. I'm glad we both benefitted from it!

[@scottgm321]

Thanks for the video. I too, had to watch it 20 times, sometimes at .25 speed. I have the 2 part plastic air intake. Those 3 bolts in the back were a bugger but after i ripped out the insulation, I could get them. If I had do do it again, I would have added the plastic white bushings before I reinstalled the IMRC thingy. The top of the lower intake was so nasty, I took it to the car wash and blasted all the grime off. Took all weekend, 13 hours like you said. Wish I could sit under the hood like you, I don't fit that well at my age and did the whole job on my belly after removing the hood latch and using old patio furniture cushions. Thanks again, I couldn't have done it with out your video.

[@cadet169]

Thank you so much for posting this video! Almost done with this repair on my '03 F150. Putting the gaskets on right now. Some slight differences between yours and mine (upper manifold is plastic 2-piece, none of the bolts anywhere were 12mm) but overall it cleared SO many things up and made the project pretty simple and very straight forward. Thanks again!

[@dehsah]

Excellent repair video, good details.People who haven't done a repair like this should watch at least twice. The key to a successful repair is attention to every detail of diassembly and especially reassembly. Notice how he cleaned the intake mating surfaces with brake parts cleaner. This is very important. The torque (tightening) sequences are of utmost importance. Very well done!!

[@randyfarr139]

Fantastic video great job of editing ! I love the way you spend it up to reduce the viewing time. I have seen a lot of u-tube videos but yours is the best one yet. I watched it twice because I was thinking about buying a van with this engine at a great price. Thank you so much!!!! Keep up the good work!

[@keithdominikbrown]

Hey this video is alot of help! I have coolant burning off my E150 work van and I'm hoping its just the intake gaskets. I was down to the intake when it just got too dark to see anymore tonight and I was trying to figure out if I had to take off the fuel lines. But your video was a lot of help! It was perfect with the captions and speeding up the process. Hands down best mechanic help I have ever seen on KZbin. Gonna finish it tomorrow. Hopefully its not a head gasket!

[@watergate528]

Not many mechanics would take the time to clean out the threaded holes & bolts. They just love the impacts & silicone. Well done,double thumbs up!

[@uptown4life13]

I'm replacing my IMRC today and this video has been extremely helpful. Thanks!!

[@freebird1ification]

what is an imrc ?

[@minimoose4349]

@@freebird1ification Intake Manifold Runner Control

[@NOLIMIT69NOLIMIT2000]

Hey Jafro I don't comment on your stuff very much but I have to say thank you so much. I thought it was a blown head gasket but I remembered watching this video along time ago and watched it again while I was doing the repair. Thank you so much.

[@Jafromobile]

Did the trick? Cheapest parts vs. most extensive labor job you've ever done? How's she running?

[@NOLIMIT69NOLIMIT2000]

***** Runs great. Owner says she runs better. I hate fords.

[@Jafromobile]

Lol! Cab forward design... please give me the name and address of the engineer responsible for that so we can "have a chat". :) Great job man!

[@steverichards2726]

Great video for this fix. Don't forget to plug in your cam position sensor when you are done or you will get a different 'Service Engine Soon' code fault! So nice to have this air leak fixed now. 2 day job for me.

[@Cucs-su6yj]

Not only do you help us in the dsm community, But the ford world as well thank you.

[@kfafnis]

Dad had a 99 f150 just like this with 4.2, even the same color. I remember doing this repair quite well. It had low compression on the cylinder that had the leak from starting with fluid in the cylinder, but it still ran good with the low compression.

[@Allsportdriver]

Good job. Did mine at about 65k due to check engine code. For other viewers, the exhaust smoke at the end of the vid is just from a generous dose of good old carb cleaner used to clean the intake ports and EGR passages. It burns out pretty quickly.

[@officialweldingfarmingarch2041]

You do very high quality work, great job.

[@KevinMiller-fj5sd]

I was able to remove and install the lower intake with the IMRC still attatched. It made it easier to service on the work bench. I hope that helps.

[@emmettbrown783]

I came to the comments to add this same advice. If you're taking the lower intake off already, just unplug the IMRC and take it off along with the intake.

[@wayneermine1599]

Does anyone know what the torque specs are for upper and lower intake manifolds are

[@Jafromobile]

+Wayne Ermine The torque specs are at 6:29 and 9:47, right here in this video. Sequences are at 6:13 and 9:37. Upvote Wayne so others can easily find it. :) b Edit: Look at those sexy original drawings I made to comply with existing copyright laws. Just look at those beautiful dang things. "Print Screen"

[@PinkBuddhaFloyd]

Excellent video. Just completed the installation of new intake manifold gaskets on my 1997 Ford F-150 4.2L V6...this video helped out tremendously...thanks :-)

[@obfuscated3090]

If you end up needing to rebuild, consider a 2005-2008 engine with a post-2001 lower intake or the Dorman aftermarket intake. The coolant passages are smaller and cure the problem of blown gaskets. Be meticulous like Jafromobile because if you get a sufficiently large leak you can ruin the engine.

[@jeepcollector91]

Great video. I am about to tackle the same job on my 2000 E-150 4.2L. I have an injector that is giving me trouble at certain RPM's so while I replacing it I am going to go ahead and remove the lower intake as well to thoroughly clean it and to replace those gaskets. The F-150 looks like its harder to work on than the van. I can get to almost everything on the 4.2L from inside as long as I remove the passenger seat first.

[@HAL-dm1eh]

Trying to gather info on upper intake manifold bolt pattern and torque specs on the upper to lower intake as well as where to put the rtv on the lower intake to heads for my 02 Mustang V6 as the info is nowhere to be found on the net, not even in the Haynes manual I just paid $32 for. This shed some light on it. Thank you!

[@calholli]

You just won a new sub... love how you are fast with the steps..... Great info. Happy to be here.

[@RenoCyrSr]

I have a 98 F-150 with the same engine with 230,300 miles. If I have that issue at least I will know what had happened. Great video and a job well done!!

[@andymcdo]

Another brilliant design by Ford. Love your videos by the way, very in depth.

[@bladosr]

Outstanding video, thank you very much for a great presentation of a somewhat unpleasant task. I liked when you hugged that ole yellow car after showing emotion by using body language. Cursing the cab forward design was also called right on time! Funny. Thanks a million.

[@shantygaming694]

If only I had known about this 5 years ago. Took my Ford to the shop, and they told me it was probably a head gasket issue. I was a broke teenager at the time and couldn't afford what they wanted. 1 or 2 times a year I'd just need to take the spark plug out like this video. It hadn't cost me anything huge yet, and I was dumb and pressed my luck. Well it did hydrolock hard one morning and bent a bunch of stuff up. Got a refurbished engine at the same shop, they put the frost plug in incorrectly and driving on the highway dumped out all the coolant and over heated the engine badly. It still ran till I sold the truck but it was definitely not new anymore and sounded worse than the old engine ever did. If I had just known this was the issues I would have done it some time myself.

[@al-x-d6077]

I have a 2005 f150 4.2L. I've looked everywhere for an answer. Problem is that the gauge goes to hot after 20 minutes of driving. It does not actually over heat. Changed cylinder head temperature sensor, thermostat, instrument cluster. Has no leaks no air in coolant system. I'm not sure if this model has a coolant temperature sensor.

[@vladdracula5820]

excellent video, does anyone have the numbers of the spare parts (gaskets) used for the metal manifold, as I understand it there are 5 pieces in total, top and bottom?

[@harokicks1]

Thank you so much. Just had the P1518 code pop up. Googled it and this video came up first. Now i have an idea of what I;m getting into. Hope mine goes as smooth as yours looks to have!! Thanks again and props!

[@Jafromobile]

You can probably just replace the plastic bushing that holds in the IMRC rod and call it a day. The P1518 is IMRC runner control. It doesn't have anything to do with the hydrolock problem my engine experienced while parked.

[@harokicks1]

K thanks

[@TinCupChef]

Bought the hydrolocked 98 f150. Was told coolant into TWO neighboring cylinders. Question: can bad lower intake gasket do that, or more likely head gasket in your best opinion?

[@trealwilliams1563]

He makes look easier than what it seems. If only I could of fast forward myself while I was doing mine... Lol. Good Job 👍

[@mrhappywaffle]

Thank you for making this video. You saved my life today

[@ItsMeJbird]

Just so you all know, there is a whole different design on the lower intake gaskets for the 4.2 Ford. I just bought a set form Felpro, they are now metal with wide ( about 1/2 between ports) black rubber for the seal. Not the original plastic with 1/8 inch silicone bead (between ports) for the seal. Hope this helps someone!

[@charleslangham7897]

Bandits INFO Channel a 98 F150 4.2 V6 PVC hoses where they go

[@charleslangham7897]

Bandits INFO Channel 1998 F150 v6 4.2 PVC houses need know where they go need a diagram or something on that

[@charleslangham7897]

I'm

[@chrissanchez5262]

Bandits INFO Channel All depends on the Build date

[@fredo65da012345]

Hello, how can I change the injectors of a Ford 4.2L V6 2001, is it the same technique?

[@lcjm225]

11 years later and still the best video on this repair hands down. What did you use to clean the intake manifold? The Haynes manual mentioned something about not cleaning it. Just checking. 👍

[@randombrandon1940]

I'm scared this is what is wrong with my E-250. Thank you for the amazing video!

[@Jafromobile]

This is not that bad of a problem to have. It's $50 plus cleaning supplies. If it hydrolocked, pull all the spark plugs at once and crank it out. Put 'em back, start it, let it warm up, and don't drive it. Pull the plugs again and compression test it first. If the compression numbers are even, you didn't bend a rod. If you bent a rod, the numbers will be all outa waco and this becomes a whole different job. I recently wrapped my eyeballs around an extended-cab V6 that bent a rod from hydrolocking during startup. I got lucky. Mine didn't fire when I cranked it. It only went RRrrr-Kank. My compression was straight 150's. I stopped cranking it the second it went "kank" and did what was listed above.

[@randombrandon1940]

+Jafromobile Thanks for the detailed reply! I'm just not looking forward to it, being a van. I hate working on van engine stuff. lol

[@Jafromobile]

Oh yeah... if it has a "doghouse", throw a tarp over it before you crank it or you'll get coolant all over the interior. If it does have a doghouse, it's a lot more comfortable doing this job inside the van than it is kneeling on the radiator support bracket. You also have a lot better access to the intake plenum. If it doesn't have a doghouse, dangit man, I feel your pain! Been there before! :(

[@randombrandon1940]

+Jafromobile Good tip on the tarp. I was shocked by the amount of antifreeze that came out of yours!

[@michaelmace924]

Do you remember what size taps you used to chase ur those threads?

[@deeveloper2567]

12 year old video still useful today. That job would take me about six weeks.

[@rco8499]

thank you sooooo much for this great tutorial!, greetings from Mexico

[@benthompson9993]

Thanks a lot for a great Video. i had this exact problem & with the help of your video was able to quite easy fix my sons truck! Kudos to you!

[@jorfremarcano2549]

Amigo ya arme mi motor 4.2 y funciona bien la válvula imrc, pero el cilindro 6 esta fallando, probé en que hubiese corriente en la bujía y si hay, probé señal del inyector y también esta, pero al quitar el cable de la bujía el motor no cambia su funcionamiento, es decir, se mantiene igual sin ese cilindro, tiene un sonido de taquetes sera que eso infiere en que no trabaje el cilindro? agradezco su ayuda. he visto comentarios de que el cable de bujía pierde su resistencia.

[@MegaJE22]

Very good video, in real time frame...he is very meticulous. However, i do suggest using a thread chaser tap instead of a cutting tap. It can mess up threads.

[@ScubaCat3]

I didn't use thread locker on the bolts when I did this. It's been a few years so I guess it's ok. I didn't see anything on them when I removed them in the first place. Also, I changed the oil with walmart supertech brand before cranking the engine over. After a day or two of driving, I changed it again with the castrol high mileage that I prefer. This way I was confident that I got out almost all of the coolant. That coolant will wear out the bearings quickly if there's too much in there when you crank it!

[@kdooamark85]

Yes I did. I found that the torque sepcs on the head to block were off and that it did not have enough pressure to hold the coolant were it belongs.also the lifters were overtighten. The specs I found for the engine were incorrect. Now I'm looking and hoping I didn't get any damage done to the piston. Can u think of any way to check the parts with the best results to better identified the problem? Thanks.

[@porkfriedluke]

I know this is a super old video but I’m really needing help finding new upper intake manifold bolts. The 12 8 mm ones. I can’t seem to find them anywhere and neither can any parts store

[@Jafromobile]

I hate to inform you that back when I made this video, I couldn't either. I went to 4 dealerships to get less than half the bolts I needed. Unless Dorman makes a replacement, or you can't somehow buy them online with the part number that's on that bag, you're going to need to find a replacement if the ones you have can't be cleaned up? The manual says they need to be replaced. But fathom this: The dealerships who perform this service don't even stock a full set. I was just like you-back then... it would be great to see a Ford tech opine in this thread. Half of my bolts were wire wheeled and re-loctited. The factory bolts have a dry thread locker pre-applied. If you wire wheel it off, you can re-apply it to the factory bolts you have that survived it. That's ultimately what I had to do. I think I found 5 bolts at 4 dealerships before I quit.

[@porkfriedluke]

@@Jafromobile I planned on reusing the original bolts but one of them is very stripped (not my doing) so I really just need a single bolt and can’t find one anywhere. I might go to a junkyard and get one off a truck if all else fails I guess. Thank you

[@kennaheflin7312]

I have the exact same intake on my 97 f150 and I can not get the intake to come off. I have removed all of the top bolts is there somewhere else that it is connected to? Thanks!

[@chrissanchez5262]

Where can I get the bolts for the lower intake manifold (x14) I’m replacing gaskets and noticed pitting in the bolts, I’ve looked everywhere online and even with my local dealer with no luck , I only find the upper intake manifold bolts(x12). Any help would be greatly appreciated!!

[@Jafromobile]

I struggled with this one myself. I went to 5 dealerships, and only managed to find 4 bolts among all of them. The best bet you have is to look at the part number in this video and buy them online. These are bolts that should be replaced whenever you remove the lower intake (according to Ford's service documentation) and they're never in stock, so... do you think even Ford's certified technicians ever follow that advice? Nope. The reason you should replace them is exactly the reason you describe. Mine were like that, too. I replaced the 4 worst ones and re-used the rest.

[@chrissanchez5262]

Thanks for the reply!! I managed to get my hands on some bolts similar enough to work from a specialty bolt shop in my area!! Great video BTW

[@ScubaCat3]

Thanks - about to do this job myself. BTW - you can now get a 5 pack of those IMRC rod bushings in a Dorman 'help' pack. It's Dorman part # 47099. $4.99 at your local auto parts store or order them from rockauto.

[@cesarbelmonte6961]

Do you know th size for the lower intake manifold bolts? Some of mine broke and I'm having a hard time finding them. I found some on a website, it says that six of them are M6 x 1.0 x 62.5mm, but I have no idea what the rest of them are, nor where to buy them all as a set. Great video!!

[@HiLeuzipper]

This video is a great help! I need to do the exact same work on my exact same model. Do you have a non-speedup version of the video? Thanks!

[@maddiesgamingchannel8163]

I was going to buy new intake and head bolts but some say that it's not necessary.. I always thought that when they were torqued to spec that they would stretch and would have to be replaced? Should this be done or is it just a waste of money? Maybe I'll just invest in some good arp studs because I find myself pulling apart this 4.2 all too often...Me and this motor have a love/hate relationship lol.

[@Jafromobile]

Demon50 You don't have to replace them. You should, but nobody ever seems to follow that advice offered by the service manual, and most likely because of how little torque is applied to them. If you over-torqued one, then it should be replaced.

[@goma3]

That was freaking epic. Amazing video. Subbed for sure.

[@Jafromobile]

It this is the video that made you subscribe, you're going to love it here.

[@jtreign9097]

What Millage did this happen?.. i have a '99 E250 that is loosing coolant and its not burning it/. the van has 63,000 miles

[@MrKirk94]

kind of wish you would have slowed the speed down when applying the RTV to the areas needed on the block mating surface and where on the gaskets. great video though

[@mgosh1]

Nice I like the time lapse, and you should the bushing in the back.

[@trealwilliams1563]

Mite want to do a engine oil flush when done ✅

[@NOTORIOUSCARCLUB]

I've driven the car. For like a month and YES... YES...and heck yea.. the car as all those symptoms... Well I get my parts on Friday so can't wait to see what happend..Should I disconnect the ground cable?

[@cb2033x]

Hi Jafro, Thanks allot for posting this video and all the other great ones you've put up. In a post you say its possible to change the IMRC bushings without taking the manifold off. Do you mean the lower intakes? cause i can't get my hands back there to even feel the thing. Also once you get the upper off can i change the bushings out without removing the fuel rail. Thanks again for the videos, TOP shelf!

[@domleonhardt4841]

great video. thank you for sharing. what size are lower intake screws. as is in what size tap did you use? i assume something metric thanks

[@ELtee555]

Great video. Mine sits hydrolocked right now and I was just considering my options. It looks like I might tackle this one. Thanks.

[@lynn211285]

what year is this truck? same sequence for 00 f150 4.2 need torque lbs in inches and ft lbs please for my mechanic want to make sure this is done right thank you for the video Im actually going to be doing this with his help

[@Jafromobile]

It's a '99 and yes, same sequence. The torque sequence and specs inch pounds were all in the video but I bet you're back up and running by now. Notifications broke on this video about a year ago? I didn't see any of these comments until now. lol.

[@wakinghellfyre]

Thanks for the video, it cut down my shop time considerably. I decided since I had to order the parts I would do some porting(manifold and plenum) as well in the down time. thanks again! very helpful.

[@maddiesgamingchannel8163]

My truck has been running rough the last 2 days and checked the oil and *violin playing sad music* water in the oil :( ... No smoke coming from tailpipe so that was the last thing I was expecting.

[@Jafromobile]

Demon50 This video can still help you. The head gaskets are just another 16 bolts away. Didn't see this comment the first time. Sorry 'bout your troubles. I'm about to sell my F-150. 235,000 miles later I'm tired of working on it. My rear axle is giving me all kinds of grief.

[@LynxStarAuto]

Obviously this post is very old, but for someone who found oil in their coolant and viceversa, before you pull the heads, understand that the same intake gaskets will leak coolant into the valley pan or V of the engine. This coolant will make its way into the oil pan. Finally, a Ford legacy issue: the timing cover doubles up as the water pump mounting plate. There are gaskets here that fail, and also dump coolant into your crankcase. Just some tips before you spend a weekend doing head gaskets, but ignore your timing cover gaskets which could be the culprit all along.

[@NoRogeR]

Finally you got a better camera!

[@raulenriquerodriguezmendez1222]

Only one observation guy, I can see that the new intake manifold gasket you installed wrong, I remember and I could see in the old gasket , that bigger water circulation holes bshould be to the front on engine.

[@Jafromobile]

I promise you this was discovered and corrected somewhere in this video, just really fast, and I recall doing it. I don't own it but the truck is still on the road today with this same repair still in tact, and a leak-free coolant system. It's well over 240k miles now.

[@paulsosa1872]

I have coolant in my oil is the culprit or could it be the head gaskets? Thanks

[@Jafromobile]

If you have coolant in your oil in a detectable amount, it's actually likely to be a head gasket, but in these 4.2's I'm going to go with "could be". There's a video of me doing a post-repair checkup 60k miles down the road including pressure tests and chemical agents to verify and pinpoint head gasket leaks or any other possible problems. A compression test is one of them, a radiator pressure test is another, and there's a chemical test that will change color based on gasses in the coolant system. I demonstrate all 3. I think it's called "Ol Whitey's revival?" It's been a little while.

[@paulsosa1872]

@@Jafromobile thanks for your response I did a couple of tests pulled the spark plugs & cranked it coolant shot out just like it did for this truck looks like I'll be having fun pulling the manifolds off this weekend 👍💯

[@WeWanTYouRSoLe]

thx man i just bought an 2001 f150 and im running lean, and durrring excelleration i dont feel all the power is there, ive heard that gaskets on this truck are notorious for cousing leaks and making it lose power so hope this works im in for a long day.

[@Jafromobile]

I'm not sure this could help you with a lean condition? Do a coolant system pressure test, and a compression test before putting yourself through all this work. If it fails either test, then okay. Do this job. Replace the head gasket if it fails the compression test... but to solve a lean condition, go after the fuel system components (filter, not the pump) and vacuum lines first. Scan the ECU for codes to see what the ECU doesn't like and that will give you a push towards the real culprit. ;)

[@WeWanTYouRSoLe]

im running lean in both banks

[@emmettbrown783]

I'm a little over halfway through this fix. I was running lean in both banks, as well. This is time consuming, but it allows me to replace the upper and lower intake gaskets (which it needed by the looks of the old gaskets I removed!) as well as replace the injector o-rings and filters and the thermostat/gasket. Taking the upper intake off gives you a really good look at any possible vacuum leak issues/rotten hoses, too.

[@lalov5420]

cuantos litros de aceite yeba la máquina 4.2 de For f150 año 2000

[@NOTORIOUSCARCLUB]

@JAFROMOBILE yea it does have the check.Eng light on... My girlfriend tells me its been on for.more than a year. U know any symptoms when the imrc is bad.. should I leave them Open or Close while I get the little connectors... And if so how do u know what's open position and close...

[@boaterbil]

those little plastic bushings are 5.00 each at ford, autozone 6 for 5.00

[@Jafromobile]

Thanks for the tip! I hope I never need to buy them again, but if I do, I know where I'll go!

[@scottgm321]

Dorman 47099. Thanks for the heads up.

[@jorfremarcano2549]

hola amigo espero y estes bien, tengo una pregunta que sucede si no se colocan esas varillas del sensor IMRC? puedo dejarlas fijas abiertas o cerradas completamente?

[@Jafromobile]

Afectará el rendimiento, el ahorro de combustible y arrojará un código P1518. Si estás de acuerdo con eso, sí.

[@jorfremarcano2549]

por el consumo de combustible no hay problema, me recomiendas que las deje abiertas o cerradas? es que no consigo el sensor, gracias de antemanos

[@Jafromobile]

Cerrado funcionará RICH a altas revoluciones. Open correrá pobre en LEAN a bajas revoluciones. Si la ECU da una luz de control del motor, entra en "modo flácido" y la economía de combustible será terrible en todas partes. El ECU debería reprogramarse para que no lo haga. Lo dejaría abierto si es así.

[@jorfremarcano2549]

Ok gracias por la recomendación amigo, hay alguna forma de hacerle una prueba al sensor IMRC fuera del vehiculo? Trae cuatro pines a la entrada del sensor, cuales debo medir con el mutimetro y que medidas me debe arrojar?

[@CharlieAtkins]

Great video, I like the attention to detail!

[@donovanpatterson2013]

how did he get the upper intake out I took all my bolts off but it wont come out

[@octagonjon]

there is a sneaking bolt in the back of the upper intake. behind where the manifold motor is located

[@BmJFord01]

I would like to ask, why does your IMRC Actuator look alot different from the actuators that fit my 97 f150 4.2? im havin the same problem, but mine say there both stuck open, so in the morning im goin to try to tackle the situation.

[@metalmaniaxx]

Were you not concerned with bent rods or valves after you heard the loud bang?also I saw one of those "D" shaped clips from the gasket in my oil pan..how bad is that?

[@Jafromobile]

Nah, not on a cold engine. If everything was hot, maybe? In another video I do a compression test (60,000 miles later) and it registered straight 150PSI across all 6. It's called "Ol Whitey's Revival". If a rod bent, the compression in that cylinder would change. I've seen other V6's with this problem bend rods (but they were green, lol), I got lucky and I attribute that to it failing while it sat for over a week, and then I discovered it with a cold engine.

[@Jafromobile]

As for the D-shaped thing, I think I need a timecode where it happened. It's been a long time since I did this and I'm not quite sure what you mean?

[@metalmaniaxx]

@@Jafromobile it's around the 3:26 mark.the bright metal pieces in the manifold gasket.

[@Jafromobile]

@@metalmaniaxx What? In the oil pan? How? Best I can guess is someone went in there before and replaced them, but dropped them into the engine while replacing them? I just don't see how they'd end up in the crankcase as they're sandwiched between intake and coolant passages. Not the oil system. There's no holes big enough for them to work themselves through the combustion chambers? Had to have been dropped there while the engine was apart. They'd be suspended in place with a bolt going through them while assembled so they couldn't fall out? That's what the hole in them is for. A bolt. You got me man... ?!?!?

[@metalmaniaxx]

@@Jafromobile thanks for the feedback.I'm happy to say there was no leaks going into the cylinder,and it wasn't hydrolocked.it was just very difficult for me to turn the engine by hand after I replaced timing components.I'm going to finish assembling it in a few days.let's hope it fires up after sitting for 18 months.thanks again

[@estrelladelnorte1308]

how do you diferentiate a intake plenum gasket failure with a "head gasket " failure, they both dump into the cilinder isnt?

[@Jafromobile]

You do a compression test. If the compression numbers are out of whack, then it tells you which failure occurred without disassembling it. At least that's what I'd do. It's almost the same amount of work to do a head gasket. All that's extra is removing a set of valve covers and 16 head bolts. :)

[@estrelladelnorte1308]

***** gracias jafro!

[@ИгорьПопович-ъ6п]

You can have a bent connecting rod after this. So it can be not a final video.

[@Jafromobile]

Yes, you can. But I didn't. A compression test revealed straight 150 PSI pressure across all 6 with no variation. If a connecting rod bends, it will change the compression ratio of the cylinder with the bent rod.

[@ИгорьПопович-ъ6п]

@@Jafromobile You were very lucky this time :)Or I think this is because its an older car that has a lover compression ratio, and much more stronger connecting rods then new gasoline cars today.

[@Jafromobile]

@@ИгорьПопович-ъ6п I think part of the luck came from the engine being stone cold, sitting for a week prior to my attempt to start it. It hydrolocked from a slow leak while sitting. Had it hydrolocked while it was hot... like if I had driven it to a store, done my shopping, come back out and it was hydrolocked... or had I kept trying and trying to crank it, I think I could have done a lot more damage. But you're right. They sure don't make them like they used to.

[@rayvines2182]

help me please. I have a ford e250 van 4.2 engine, I put new head gasket, intake manifold gasket and had the head shaved. put it back together but I still have a slow coolant leak. I don't know where its going.i notice the tail pipe has alittle water vaper in it.could it be the intake is worped or clogged? or my water pump is leaking from inside in timing cover?

[@Jafromobile]

I hope it's not this... but if all of your gaskets were seated against a clean head and installed properly, it sounds like either your intake manifold or a cylinder head is cracked.

[@KevinMiller-fj5sd]

I would take it to a good shop and have the system pressure tested. They can put dye in the coolant under exteme cases. The water vapor in the exhaust is probably normal condensation.

[@bjre.wa.8681]

Sssoo, did he change engine oil?

[@NOTORIOUSCARCLUB]

@JAFROMOBILE... OOO great thank. Do u know how I can check if my IMRC is even working. while doing a tune up on my girls car I found one of the link completely off just sitting there. And the other one was off on the manifold...

[@chandlerwilliams503]

Haha yeah man. Through all the motors, trannys, crankcases ive rebuilt/restored/repaired. That's some of the best stuff. Keep it up man. Love the videos. I recently Hydrolocked my 1990 Ford Ranger 2.3L I4. It's not seized but something mechanically is blocking the full rotation. You can get a half turn and then *clunk* that's it. I'm thinking bent rod or dropped valve. Any ideas?

[@graemeheaton5015]

I have the same problem I have taken the water out or the engine it will crank over but won't fire up. Any ideas

[@Jafromobile]

1) do a compression test 2) change out your plugs and wires.

[@diegosantiago3653]

quiero saber como le monto deun motor 4.6 a una pikup del 98 la computadora

[@freebird1ification]

a fine example of how the newer trucks with a 20 dollar part ends up costing over 1000 bucks to fix -thats why alot of these go to the scrap yard when this happens most folks dont have anywhere to do the repair or the tools so off to the scrap yard they go what a sham thats why i wany a pre 80s vehicle there mostly easy peasy and dont have to worry about emision crap

[@kdooamark85]

I'm working on my truck as well and the starting problem sounds the same. However I took the job a bit further I had a bolt snap on the head. I fixed that and put everything back together. The engine turn on grate one time then the problem happened. But all gaskets are new and parts were cleaned any ideas. I have pic if u need to see them. Can u help?

[@robbiegwinn]

Did Ford make a remake on these bad gaskets? i also had the coolent leak and it bent the connecting rod. fixed it and it did it again 30,000 down the road. Went with a rebuilt on the promise the gaskets were up graded. coolent leak again. 3rd time. of course i called ford and all i get is bs. Now i wonder: did they ever remake the correct gaskets?

[@37Taft]

can you replace the plastic bushings on the IMRC without taking off the upper intake manifold?

[@Jafromobile]

Yessir! You just can film it because it's hella hard to get to. You don't even need to remove the IMRC to do that. Just pull the rods out, push the old bushing out, push the new one it, push the rod back in. ;)

[@voiceofreason7119]

Jafromobile is it possible on the econoline vans also?

[@WorldPowerLabs]

@@voiceofreason7119 On the Econolines, just remove the doghouse engine cover and the IMRC actuator and those bushings should be right there in the open. Far easier to access than on an F-150, and you can see what you're doing.

[@brennanbrown2408]

I had just completed this it diddnt smoke that bad but it's giving me a little puff of smoke every once and a while you think it's still burning off the coolant

[@Jafromobile]

If the head was cracked, then it's possible that it could still be leaking it. The way to find out is do a coolant system pressure test. Look for Ol' Whitey's Revival. The first 2 tests I perform on it 70k miles later are the ones that will determine the health of the head gasket, and the intake gasket. The coolant system pressure test will catch any component leaking coolant. If the head is cracked, or the head gasket is shot, it will fail both tests.

[@x0jok3r0x]

Hi Jafromobile I have the same truck and it pulled the code 1518. is there an easier way that I can get at the imrc. I have put a lot of work into my truck and its almost code free except the 1518. please help.

[@Jafromobile]

+x0jok3r0x Yes, it's a pain, but you can get to it without taking any of this stuff loose. At least you can get to what's causing that code in your case. It's the dang actuator rods. One of them has popped out of the bushing. The IMRC isn't working and that's why you have the code. If the grommet isn't broken, you should be able to just pop that rod back in there. Often times when people do a lot of work, these rods get bumped or pushed out of the bushings. Sometimes the bushings are broken and fall out causing the rod to flop loose. If you can't pop the rod back in and fix it, you probably need a new round bushing for the square hole.

[@x0jok3r0x]

great thank you. I got it fixed the grommet was broken. I put a new one in and popped the rod back in place and no more code. thank you again.

[@graemeheaton5015]

My van is fixed got the water out but it had partially seized the turbo.

[@Dzackman]

Great video, do you know if that 90 degree pipe on the front of the lower manifold is replaceable?

[@vidsbfree4me]

Nice production. I'm going to attempt this job on a Econoline 150. Have not seen it yet. But In your opinion, would the Van be more or less accessible than this Truck? Thx

[@Jafromobile]

If it has a doghouse it's a lot more accessible. It's hard for me to guess based on the info provided. I haven't had the luxury of working on an Econoline, but I've watched someone work on an old one with a doghouse, and once it's out of the way you've got 360° access and a comfy chair. That can't be all bad compared to a cab-forward pickup.

[@vidsbfree4me]

Jafromobile ty kindly!

[@scarflyr02]

i have the same truck 99 f150 4.2 that according to what ive read on the net, it have a antifreeze leak into the oil engine due to the prescence of a white kind of milky stuff inside the oil cap, does it need the same repair procedure? anybody

[@Jafromobile]

75% it's this problem. 25% it's a head gasket. The head gasket is about 20 more bolts and 2 extra hours of cleaning to fix. If you're going to do a head gasket job just to be safe, buy a service manual and follow those directions. I didn't have to go that far to fix mine, so I don't have any instruction or specs for head bolts here.

[@scarflyr02]

***** thanks for the advice

[@NOTORIOUSCARCLUB]

Great video... I have a 02 v6 mustang. I need to change the IMRC linkage rod plastic retainers.. do u know if I have to remove the intake manifold...

[@Rednecht]

Breaks my heart cause I always loved and bought and supported Ford products faithfully. I am still holding out hope ford will do the right thing and reimburse us owners for replacement motors and or fixes for this extremely disastrous issue. Makes me wonder where is NTSA The National Transportation And Safety Board Or Consumer Reports in all of this??? From what I have seen this issue spans back over 10 years now with no one accepting responsibility. If Ford fails to come through for me then guess what product brand I will no longer purchase? Not only that but they need to remember that if you build a quality product the consumer buys he will tell a friend but if you build crap he will tell a thousand strangers. Think about it Ford...

[@freebird1ification]

they dont care there all at the bank counting there money

[@larrysheppard8433]

@@freebird1ification Yep, I owned an 85, 89 & 92 f150 with the straight six. All were great trucks that did an incredible amount of work. They were absolute mules and I loved them. Bought a used 97 a fews years ago with the 4.2. What an overall pos for a truck. My next truck will be a Toyota. Refuse to own 1/2 ton crap U. S. manufacturers build.

[@conmoto]

Excellent video. I really enjoyed watching.