Short Circuit! Fuse box FIRE! 2005 Ford Expedition 5.4

[@RainmanRaysRepairs]

Part 2: Extremely Tight Squeeze! 2005 Ford Expedition 5.4 kzbin.info/www/bejne/kJnNoJKrd7llmLc

[@howardkanitz4998]

The second one did not say that the AC was fixed or not.

[@robertwermager8201]

@@howardkanitz4998 ¹¹

[@FUNKBOOGIE1]

Ray ? NOW I SEE WHY THE OTHER GUY HANDED IT TO YOU LOL

[@maxmcarnage7642]

That was some of the coolest diagnostics I've seen, you sir bring honor to our profession.

[@clbcl5]

I do believe this will be part of a resume video for any future endeavors.

[@RainmanRaysRepairs]

I had fun with this one. Challenge accepted😉

[@justme5384]

@@RainmanRaysRepairs I'm an electrician by day, and I love fault finding. When a customer calls and I ask them that does the problem exist all the time or intermittently, they always are surprised when they answer all the time and I answer them that excellent , I'm definitely gonna find the fault then. I do also get my hands dirty with my neighbors tractors and semis, they have some custom built rigs so also there is sometimes some fault finding that a book won't help

[@viplegaleducation1292]

He’s surgical with car repair! 🙇

[@Dis-Emboweled]

Way better than firing the parts cannon!

[@rickdecarlo]

I'm an electronics guy. Very good diag techniques. Nice to see a car guy go this deep in troubleshooting electrical problems.

[@xlyamx]

hand down, ray is the most trustworthy mechanic/person i have seen in a long time. keep it up man. you inspire A LOT of people.

[@jamesogara2219]

Fantastic

[@rpm172]

Masterclass in deductive reasoning. Thanks for making this approachable in terms of pacing and language.

[@eduardogarcia7228]

Completely understand your step by step, the unfortunate challenge is that it ended up being the last component in the most difficult location. Never fails…..great job.

[@simonilett998]

@Eduardo Garcia It's ALWAYS the last component, in the hardest location. Murphy is everywhere and always watching🤣👍

[@johnalees99]

When it's in the last place you look, keep looking so it's no longer in the last place you look.

[@rolandocurro9]

Yes! . It seems to be the last item / connection on the wiring assemblies the culprit. Unless it's a factory defect or an assembly worker's careless screw up. I think it's design that way by most car manufacturera IMO.

[@brnmcc01]

That's true but replacing that A/C compressor doesn't look like a fun job either. However that fuse was only powering the relay, and not the clutch itself.

[@simonilett998]

@@brnmcc01 Yep, well spotted. Just the power for the relay coil. That small oversight couldve sent him down a whole other rabbit hole for absolutely no reason.🤣👍

[@mmlchaelcurtice5404]

H this is mile marker Mikey from Trenton michigan, retired 77-year-old telephone repair technician who shot shorts ground crosses and opens for a living, 41 years, rain Man Ray you know your job and I'm proud of you keep up the great work and videos do do do do do do. Yes former dingaling man you got it. 😁🇺🇸👍

[@aaronjohn6586]

Cannot tell you how much I appreciated the detective work, the due diligence and most of all you showing how important it is to stay the process. Plus kudos to you as when you get the tough diagnostic jobs is a testament to your level of professionalism.

[@viplegaleducation1292]

Totally agree man. Going through that circuit wasnt too bad, a few tough connectors here and there but that change valve in back of the intake! My god! That was some tough stuff man. What a beast!

[@MrSmyrna406]

You never fail to impress at how patient you are when working through a difficult repair. Your channel rocks !!!!!!

[@davidmorrisjones8999]

A great job, brilliantly methodical and an inspiring example of "never-give-up" diagnosis.

[@t1259sw]

Rainman great troubleshooting skills, I've been in industrial maintenance for over 42 years and troubleshooting has always been the greatest reward.

[@fredwalker839]

Agree! When I win a can of worm mess , I feel like I sucker punched Mike Tyson & got away with it ! LOL

[@dragonmaker1541]

I liked the step by step, walk through. It shows what is really needed to solve an electrical problem. Showing the fuse blowing, was interesting. Those leads melting should have caused no damage. It burned way to quick. Car wires are a lot heavier than that. But this is a little lesson. Don't buy cheap tools that are not fused for the gauged wire used for leads, unless you want to fry it. Not a bust on Ray, the tool was there and it could have fried almost anytime. Meaning, you think this would be the only time you look for a dead short? See the whole video was a learning experience. See ya tomorrow. Ray.

[@RainmanRaysRepairs]

I really should have thought about it, but the gauge of the probes simply slipped my mind in the moment. Complacency always gets you

[@timhurst1813]

@@RainmanRaysRepairs I've melted my cheap test leads like this. Theyre not made to handle a load🙃

[@milantrcka121]

The test leads are "fused" to protect the much more expensive harness.

[@wernerpd777]

The probes represent a tradeoff. On one hand, those slimmer probes allow you to get into areas that the larger probes than normally come with the multimeter will permit. The tradeoff is that extra care has to be taken when using those to troubleshoot known shorts. Realistically, the gauge of those slimmer probes will not handle a 15 amp draw and using them on a known short circuit is going to guarantee them as the failure point instead of the fuse. Frankly, I like the fact that Ray "took one for the team" and fried a set of probes for our educational benefit and entertainment. I have to confess, it was a little exciting while the fire was raging on the probes. I have seen worse when aircraft mechanics were troubleshooting electrical systems. Still, great troubleshooting.

[@pc4ad]

@@RainmanRaysRepairs Not a car mechanic, but just interested in 'seeing working people' and learned alot from your video's while recovering from a stroke. Thanks for that! Just if you are interested: A 15 amp fuse will not 'immediatly' blow if the current over the fuse exceeds the 15 amps slightly. If you google for "related time current characteristics of fuse pecj" you'll find some nice information. 200% current (or in this case 30 Amps) would take anywhere between 0.15 and 5 seconds to blow a simalar 15 Amp fuse. A direct short will allow for way higher amperage of power hence an immediate blow as you've showed on the end of your video. But, when measuring 12V, for 15 Amps to flow, means the total (expected) resistance would not be under (12V / 15A) = 0,8 Ohms. With the defective device in place, you could have measured Ohms resistance of the total circuit being well below 0,8Ohm - more likely 0,2 to 0,3 Ohms. The test-leads, the (non-ideal) connections made and super thin probes most likely have caused the total resistance of the 'short' to be 0,8 Ohms, causing the wires to burn, but to safe the fuse. Next to that the heated wires will have an increased(!) resistance causing to raise the resistance ever so slightly and drop the Amps. Having the probes not rated for that kind of current was your recipe for this disaster. Hope this makes any sense! Best regards Anton

[@nv1493]

I'm always impressed by the dilberts that just install a bigger fuse, thereby guaranteeing a melted harness and/or a burned vehicle.

[@fredwalker839]

Happens a lot !

[@zachv1942]

Looks at vehicle fire passing by on the freeway lolz. I've seen 2 full size trailers on fire.

[@johnduer7428]

I worked in electronics for years and that was the best troubleshooting I have seen in years. 😊

[@edbenson98]

I really wish he'd record putting the whole thing back together again as a bonus video!

[@Luis-xd3qg]

We all appreciate the "DooDooooDoooo"🎶 code!

[@Indigenous51]

You outdid yourself , Ray. Your determination and method to find the fault was exemplary. 👌🏻 🤩

[@johnlopez4089]

Your electrical diagnostic ability is off the charts. Electrical is my weak point. I’m learning a ton watching your videos. Thank you so much for sharing your knowledge 👍👍

[@k-mc94]

The doodley doodley dooo codes are the worst 🤣

[@michaelrck]

Sherlock Rainman Holmes solves another engine mystery.

[@rickeymitchell8620]

The process of elimination is a great way to find problems. Awesome job Ray!

[@Starsnu1]

I think I enjoy the electrical diagnosis best of all the many things Ray does. I learn so much. Putting this video into the "Save/Favorites" folder.

[@InCountry6970]

WOW, I have seen some diagnostic work before, but this is very impressive. Most mechanics would never have gone that far. Great job Ray.

[@mikeybhoutex]

And those are the mechanics you don't return to... if you can suss it out they aren't doing it right.

[@robprior1246]

Baker one us diag techs do this every day , hopefully customers will watch this video and see why diag cost so much .

[@willypalooza6519]

This is an easy diag lol what do you mean. You're going to subpar mechanics

[@zcvyvyan]

He followed a diagram and unplugged components one at a time. It's a pretty basic procedure that any tech that's worth paying should be able to do. This short was an internal short in a component which makes it easy. It could have been a harness short which is harder to trace.

[@keithmarshall5970]

I have even more respect for good mechanics like Ray…I’m shocked at how complicated it all is and you were just diagnosing the problem…Ray is the man!!!!!

[@ColinChick]

That was awesome work - both the diagnosis and the documenting. Your perseverance is astounding.

[@AntonioClaudioMichael]

Rainman Ray Always Showing that not all of us mechanics or Techs Are Bad Most of us are hard working good People Nice work Ray bring the honor to our Profession brother @RainMan Ray's Repairs

[@tootoofan55]

I never thought watching diagnostics could be so interesting, love that video and the explanation, it actually made me understand how to chase wiring diagrams Love it, keep ‘em coming ray!!!!

[@WilliamLaakkonen]

Here's a tip Ray- use a 1157 bulb in place of the fuse- a dead short will make it glow bright... and you won't waste fuses. Need more current? Parallel bulbs. You can make a jig for them with a fuse socket for various sized fuses. Also- if you start at the fuse box- with that circuit you might have been able to eliminate a whole branch by pulling the wire at the back of the fuse panel. Just a thought- and a tip which we used to use way back in the TV repair business. Sometimes a short could instantly waste a fuse, AND a 30 dollar transistor. Thanks again for sharing your work. Looks like you are morphing into the "tough dog specialist" - what we called the guys who would do piece work and do the rounds to different TV shops only fixing the units the other tech got stuck on. Cheers from N. FLA.

[@99SpyderGSX]

In future you can use a high amp lightbulb in place of a fuse as a good visual indicator of a short. In a direct short to ground the bulb will be brightly lit and when you find the short the bulb will go out/get dimmer depending on the current draw of the items on the circuit.

[@Alan_Hans__]

Almost any tungsten filament globe will do the job. The resistance when cold versus hot means that they pretty effectively serve a double function as a fuse and an indicator. A 21W globe for instance will happily allow probably 10A without "fusing". I have used the technique many times when faultfinding electronics.

[@HoLeeFuk317]

@@Alan_Hans__ a higher amp bulb will be more effective in automotive circuits. If your wiggling a shorted wire that's changing from a direct short to a high resistance short a low amp bulb may stay bright the whole time because the high resistance short can still carry enough current for a low amp bulb. A high amp bulb would go out or get very dim during a high resistance short situation making it much easier to see when finding the problem area

[@jamesop22]

Or just use a multimeter lol 😆

[@HoLeeFuk317]

@@jamesop22 you could use a amp probe if there's an easy spot to put it for the circuit. But measuring current directly at the fuse slot will just blow your meter fuse

[@jamesop22]

@@HoLeeFuk317 why would you need to measure current of a short? You measure resistance which in this case would be

[@GamerDave1974]

Dude, you are a Mechanics Mechanic! You don't stop until you Completely diagnose an issue. Good job man!

[@stevekehr6768]

In 38 years as a Ford technician I’ve got to say I’ve never seen an IMRC actuator cause that short. In that circuit it’s usually a shorted O2 sensor or the harness rubbing on a heat shield. Well done Ray.

[@donpetersen2000]

he's not done yet....may not be the actuator.... could still be a harness issue....we will see in part dos

[@sheerwillsurvival2064]

Noted to my memory great tip 👍🏻

[@mikeybhoutex]

@@donpetersen2000 The only way the fuse blows is if the IMRC is plugged in. Unplugged, the wires prove out correct, the one has power as it should and is not blowing a 'higher' fuse, and the other is not grounded. The only cause is the IMRC. He is in fact 'done yet' with the diagnostic.

[@CoolerQ]

@@mikeybhoutex A damaged harness could easily behave like that since he jiggled it around quite a bit when removing everything else.

[@mikeybhoutex]

@@CoolerQ While you have a small chance of that proving out, the truth is if the wiring was faulty, it would still short out with or without the IMRC. The simple act of plugging the one thing back in causes the short. If it were jiggling, that would not have happened as the wiring was jiggled to not short previous to replugging the device. It is therefore highly unlikely it's anything else in the car but this module. I am of course prepared to be wrong, but the percentage of that is very very low at this point.

[@guesswho9742]

Ray I once spent 40 hrs on a 06 Jeep Liberty with 400 miles on it, to find a 4 WD syc code. Yes I literally changed all wiring harness' in the truck. After the third one, the factory found a defect in the manufacturing process of the main harness. They bought back the truck from the customer and gave him another model for an extreme discount, as the truck sat in my flat stall for a month, and I never got paid for it. I never worked at a dealer again, and yes I am a ASE Master Teck since 1978.

[@HoLeeFuk317]

That's a screw job for sure. My shop pays it's techs their hourly rate for actual hours present up to 40 per week. If flat rate hours are over 40 we get paid for those too. It's a pretty good deal actually

[@guesswho9742]

@@HoLeeFuk317 That was a Jeep dealership I had worked for a few years at before they were bought out by a national auto chain just a couple of months before this happened.

[@Jay-uw2eb]

nice work Ray, I love the feeling of a successful diagnostic especially on electrical

[@DB-po8rs]

This video shows your talent. Dealing with wiring/ shorts is always tough no matter what you're working on. Great job 👍👍👍

[@williamduhamel7726]

I love on how in newer cars you have 50 fuses, multiple empty spots but yet a hard component with multiple splices sharing a single fuse?

[@hubiecasteel7045]

If you and Eric O had a shop together.... You two would have the ultimate shop... Enjoy watching your informed videos...

[@cranefly23]

That was an absolutely fascinating video. I really enjoyed seeing how you diagnosed the fault. It certainly turned into a lot of work for you! Brilliant.

[@MrAlienware1]

Whoever hired you Ray they better treat you right because to find tech’s like you is like winning the lottery..👍👍👏👏

[@Bump1972]

You had me at 5.4 . I’m always up for the reminders of the hell they’ve put me through

[@defresurrection]

From a customer's standpoint, miraculous work!

[@callumcrouch]

Oil cap is upside down at 1:41 , there's your problem right there.

[@wwjoshdew]

25:01 holy crap. that actually worked. lol. I was like "did I click like yet?!" nope... I hadn't. but I fixed that by clicking the little upward facing thumb.

[@FlyEaglesFly19111]

Ray. We have reset fuses so not to have to waste all those fuses. Look into that we have 3-5 amp for HVAC. Might work for you for finding ground shorts.

[@zachv1942]

You dont have to waste fuses when it's troubleshot properly. Also that fuse was 15A. I wouldn't feel comfy letting some dimwitted Morron reset the fuse every time. They eventually would light it up when the fuse won't open.

[@dv7548]

Rainman you breaking down section by section via blueprint to hands on is informative and is a teaching moment. Keep on with your channel it's fun and with lots of surprises.

[@randomschmo5778]

Darn, i bet your coworkers are glad they have 'phone a friend' Ray option when they get stumped. Great video....not to be too demanding, but it would be cool to see that part opened up to get a view of what exactly is causing it to short to ground? Thanks for the content Ray.

[@tstuart7333]

Young man you sure in an encyclopaedia of knowledge. Many who assume they are professional could lean a lot from relaxing approach and methodology. A great video and some great humour. Thank Rainman Ray.

[@ivari75]

Great diag video! Ive done this myself quite a few times and know most people i know won't touch a blown fuse problem cause they never do it properly step by step and get stumped

[@fredwalker839]

Or run out of fuses ! LOL

[@Reginald-hp9js]

15:30 startled me. I was wondering who grunted in the video lol. Nice work tracking down electrical issues. Chasing the rabbit through the hole.

[@DeuCeNTX]

Excellent job Ray... so many folks would have started throwing parts at a job like this without actually duplicating the issue.

[@TheWabbit]

I had a short in one of my 1990s Ford trucks, unfortunately the first two wrench monkeys cost me about $800 by firing the parts cannon, the 1st one was a stealership, the second was an independent. I was talking to one of my neighbors and her husband was a mechanic who had quit because of the BS. She talked to him and and told me to swing by the next afternoon, after some talking he pulled out an ohms meter, spent maybe 5 minutes checking a few things, pulled an ignition module off a Mustang and fixed the problem, free diagnostic and a $15 part, diagnosed and fixed in about 20 minutes. It was at that point I knew what a true mechanic was because up to that point a basic diagnosis that anyone could do, I did myself. I was always let down by everyone when I needed advanced diagnostic work done until this True mechanic!

[@railbaron9]

Ray, you can use light bulb in place of a fuse. You can use a 100 watt bulb, add to leads and put in place of the fuse. If the bulb lights brightly you have a short. It can save a lot fuses. Great diagnosis Ray you are a top notch mechanic and diagnostician.

[@leooboyle4375]

When I heard the tones of the fuse test, I went to raise a hand - took me back to those ill fitting headphone hearing tests as a kid.

[@jaras1969]

Just like many other people here, I too like the step by step diagnosis and walk through. I use the same steps (more or less) when trying to diagnose a fault. Although I work with 230V or 400V, mains supply. Just goes to show, that technicians are more alike than people would think. Whether it´s 12/24 volts in a car or a truck, or it´s an electrician working at 110 or 230 volts, the basic techniques are the same when troubleshooting.

[@Alan_Hans__]

That electrical diagram was fairly excellent. I wonder if there is much difference between a commonly available wiring diagram for a vehicle and that one from Alldata. It would be nice to have access to diagrams of that quality and with little pain. Nice work on the diagnosis.

[@waynespyker5731]

Be advised to be open for substitution to the wiring diagram. Harness plant, "We are out of white with blue trace." Brown with blue trace was approved for a temporary fix to finish that run.

[@pappagrumpy6210]

I've found that some shops ( local small ) will print them off for you.

[@erik_dk842]

But kinda stupid not to print on page 1 that the other end of the line is on page 5. Volkswagen diagrams do that.

[@fredwalker839]

@@waynespyker5731 Sad but “true” doesen’t happen often , but does ! Comparing Mitchell & Alldata ,,,,find they claim same colour,,, so now what Bubba Louis . I just figured the schematics are wrong,,, but,, I have a different colour in my harness !!?? WING It TIME ! LOL

[@DavidMaximilianCathmoirNicoll]

I remember on my old Triumph 1500FWD, the wiring diagram took up all of 1/2 a page. 🤣

[@randyvoss]

I've always thought that these videos are great because you can show the customer what you have to go through to fix their cars and why it costs so much

[@kwippl4207]

Nice video Ray! I just fought with this issue 2 weeks ago with the same fuse and bad component. You have a much better wiring diagram than I had but the motor was still the issue blowing the same fuse. With my poor diagram, I referred to a troubleshooting guide I found somewhere on-line and that motor was the 3rd thing on the list. I have to admit that I really enjoyed this one as you were much more thorough and showed all the components that circuit deals with. It sure seems like a lot of stuff to be on one fuse and getting to that motor took some work. Just one caution - I missed the rear vacuum line with I reinstalled the box the first time. Don't be like me.

[@johnswick4593]

Rainman, you are truly a wizard. My hat is off to you sir.

[@BillTiemann]

This is the kind of video I like. In depth diagnosis. Good work my man! Just wondering how many hours were expended for the diagnosis and, will the business be able to recoup the cost of that plus the repair? Just wondering how all that will work out.

[@adrianstanton2652]

Rain man Ray FIRESTARTER. shorts to ground are the bane of mechanics every where. Flame on.

[@frankvucolo6249]

Great video. Great job with this. Follow the process. When that gets real hard to do, follow the process. Murphy’s law would not allow it to be the AC compressor, but, rather, the last and hardest component on that circuit. Gotta wonder if there is a mechanical malfunction in those flapper/baffle thing a ma bobs that over stressed that unit and causes it to fail?

[@CraigClarkson]

It did look pretty crusty. Hopefully Ray makes it nice and shiny.

[@johnbaxter852]

Actually, from the wiring diagram it looked like the wire only went to the compressor relay, and the actual compressor could not have caused the short.

[@avasonsyn]

Money shot...23:59! Fantastic Work!

[@MJ0781]

If the customer has to approve the replacement of the faulty part and declines to do so, how much is the charge for all the diagnostic work you had to go through? Seems all the intensive labor would cost more for diagnosing the faulty part.

[@uenragedbro]

Our shop, not Rays, charges labor at $168/hr.. it's up to the tech what to charge diagnosis, whatever seems fair .8, 1.2.. or however long it takes.

[@Dust599]

You just don't put it back together for them :P

[@johnt.848]

@@uenragedbro $168/hr is why I don't bring my car to a shop. I don't want shares in the company or to buy them out.

[@Labboy541]

The shop i go to will normally count the diagnostic as part of the replacement. Example say the diagnosis for this would cost $150 and you decide to fix it later and it cost $600. If you fix it at this point they charge you just the $600 to encourage you to do it now to save the $150

[@InsideOfMyOwnMind]

Diag and reassemble $xxx.oo, repair, add the price of the part.

[@jimplatts6172]

Not just the last one but the hardest to get at typical. Another great job Ray.

[@jimcaufman2328]

Thank you for confirming my belief that I should never own another Ford. My Brother-in-Law has Fords and is always heading down the rabbit hole to fix yet another problem. I watch to learn. Retired Airline pilot and aircraft mechanic. I can't wear gloves when working because my hands sweat. I just use Go-Jo like the old timers did. Wait I am an old timer at 75.

[@waynespyker5731]

Go-Jo......used by a fellow machinist to prevent his finger prints from rusting steel surfaces 60 years ago.

[@snowlothar45]

60 years of being a Ford guy. My last 2 of 3 were in the shop more than in the driveway. Switched to Jeep (yeah I know), and they have yet to be in the shop except for maintenance.

[@philliplopez8745]

I find work to be fascinating, I could watch it all day long .

[@The25Fantome]

Great analysis, still curious on one point: do you suspect at any moment faulty wires themselves ? Or you go to that once you cleared every module connected ?

[@tonyjover]

The latter 😀

[@TXCherokee]

Great job Ray using wiring tree then tracing each device on that circuit. 😁

[@jimmyb1451]

I can't say that I've ever seen a variable intake runner system that did anything to justify the problems they create. Every single one of them fails.

[@gmch61]

That was the coolest diagnostics I've seen, pulling diagrams and tracing the issue good job!!

[@scottbishop7899]

You should really take off any jewellery when working, not only could it cause an ark or short to ground (causing it to damage electrical components but it could heat up causing you to get burned badly) and/or causing a catch that could cause you to become stuck or have your ring catch a moving component causing full or partial loss or a digit or worse. (I know you might say it is a sign of the unbreakable bond to your wife and your commitment to your marriage vows etc) In that case I would suggest possibly using insulating tape to cover it. It can damage the jewellery also .... just saying lol If its a chain round your neck then it has the same risk of potential injuries but I wouldn't want to lose my head over it lol Watches and bracelets may come under this too

[@donwyoming1936]

I cringe every time I see him wearing his wedding ring. Good way to lose a finger. I just got used to removing all jewelry, watches, etc... when I got to work and putting them back on at quitting time.

[@rolandocurro9]

Don Wyoming • Great observation and advise 👍

[@scottbishop7899]

@@rolandocurro9He is replying to my observation/advice 🤔

[@tchamp72]

I've seen electrical tape on his ring finger before. He does it sometimes, but not consistently.

[@scottbishop7899]

Think you'll find that's his right hand lol

[@cecewd405]

You read that schematic like a book. I'm very impressed 🙌🏽.

[@hackzgames]

Cool story so about a year ago i bought a 2004 bmw x3 and it had a bad ac compressor but we didnt know so when we put on the ac smoke started coming out the hood and from the fusebox after disconnecting the battery and towing it to a mechanic we found out we had a 30 amp fuse installed for the compressor instead of a 5 amp and when we put on the ac it pretty much burned our whole engine cable installation thankfully we found a used one from a car that has been crashed altho it took 2 months of searching all because of a fuse it was expensive too altho that happened i still didnt sell it i still have it and enjoy it been a reliable car since

[@moushunter]

I owned a 2005 F250 diesel for 12 years, 170K miles, and from the electrical nightmare that vehicle turned out to be I must say you did well. Check the fuse box to make sure all the fuses are actually plugged in properly. About a third of the fuses in my truck were stuck beside the clips rather than between them. After 3 years of the service department failing to fix an intermittent run issue I found the high pressure oil switch plug was also beside the lug rather than on it. Every time a component was replaced there was an upgraded wiring harness required for the new parts, (FICM, Glow Plugs, Fuel Pump etc). The only thing that worked right was the Turbo and every time the dealer saw it they insisted it needed service. I refused the service because it was the only thing on the truck that worked right!

[@bertblue9683]

Just like a car crash or a naked man in the shower, any video about a Ford Triton 3 valve is one you can't turn away. You went from easy to hard on the diagnosis tree which is proper. That customer should be happy to have you. I would have told them to light it on fire and take the insurance claim. After all, it's a Ford

[@shermanmaddoxrcpc774]

I love the diagnostics on this. It was not a fuse box problem we had years ago on our 1988 dodge caravan it was an engine failure. My wife called me saying the thing died on the highway. I looked at it would not start. I had it towed to what I thought was a reputable shop man was I wrong! After a few minutes they said it needed a new engine. I couldn’t afford that at the time. I had it towed down to the in-laws to look at it closer. It would crank but not start other mechanic friends said it might be the timing chain. I dug out my chilton manual on it and started looking and at wiring diagrams as a starting point. I looked at continuity between distributor and several connectors. I was about to give when i suddenly found an open between two connectors. Physically traced down the wire(s) and found a wire end that was on the backside of engine that had separated from a lug. Replaced the lug the engine cranked right up. Two tows and lug was a lot cheaper than a new engine. You very good at at your diagnostics procedure I was there were more mechanics like you in the business Have a Great Day!

[@wallebo]

A lesser man would have started crying, wet his panties, quit his job, and then taken the rest of the day to rethink his career choices. You, however, didn't do that. You persevered. I need to step up my game. You rock!

[@titolongo1]

What a Job, I started to have back pain only watching you work. 👍

[@brucemadden1626]

One trick I've done for years is to make up a batch of small circuit breakers with different amp ratings--saves a lot of time not to mention you may run out of the correct fuse for the problem

[@davidmillhollon486]

Ray you are the man who has all the answers I wish all automobile machines would have your noleeg and onusty and Murrells.

[@Number6_]

A textbook diagnostic Ray. Very well Done. Pity it had to be the last one underneath the manifold. Watch this guy say he can't authorise the work. A Cookie for Ray.

[@Robert-xn6xs]

You Sir, are Relentless! Mad Props!

[@markymark2189]

You diagnosed that like a pro! Oh wait you are a pro! I enjoy watching your videos, why I don’t know but I do. I was an aircraft mechanic for 20 years chasing down electric shorts was a pain but I loved the challenge.

[@jameshedrick605]

One of the coolest diagnosis I've seen. I'm good at repairing shorts in a wiring but i wouldn't have been able to find that one

[@gussyshield2456]

Love your flow-through diagnostic logic.

[@vernonbruce3722]

You are very tenacious in your diagnostics

[@TheCanadianInsight]

Thank you for this! I love watching the process of these complicated Dianostics!

[@donw3912]

An excellent how to video on diagnosing an electrical short...I don't think Ford could have made getting to that stinking motor any more difficult...geez... A great video Ray and a good explanation of the wiring diagrams and how they are laid out. Another great video...just sucks it was so invasive for a diagnosis.

[@fordtrknut]

Great video! This shows the non-mechanical owner/customer why it costs so much for an inexpensive part. Good job sir!

[@ilbercgross4736]

And this is way it costs a lot to find a problem. The problem is not always on top and sometimes in the middle. Most helpful to understand. Cheers.

[@keolam885]

I think this is your best troubleshooting walk through to date This is why you're awesome!

[@BillFromAZ]

That was fun Ray. Like computer programming to find a bug in the code....you eliminate one thing at a time. Also, it was a good thing you were there in the passenger area paying attention when the leads went.

[@sand0077]

Great diagnosis, persistence was the key to success!

[@hokt443]

I absolutely love these type of diagnostics, kind of like chasing parasitic draw.

[@markshaw1539]

Great job troubleshooting, I enjoyed watching you following the schematics

[@itsthehumidityyall8303]

All the talk about the 5.4 makes me glad I have a 4.9! Good stopping point for me.

[@hdfeltes]

Do them a favor and have them get relay to fix the fuel pump relay when it goes. Have them reseal the front winshield and cowl area for passenger side water intrusion. And go ahead and replace all splices at drivers sill plate.

[@wolfmazter]

The fire is what made it fun! 🤣 Some of the things you say during moments like that have me dying of laughter.

[@frankdaddyoh6811]

Good diagnostic process .... step by step , proof is in the smell of burning wires and insulation ...and blown fuses ....

[@todaylets2583]

10 out of 10 diagnostics right there!! Well done!!

[@Diglett_Dude]

Them doodlie doodlie doo codes will get ya every time. I winced when you said let's assume this has been done/programmed correctly.

[@joshdevdoss9041]

I wish we had Mechanics like you in my Country. Props for your patience!