Hydraulic to Electric Fan Conversion 01-04 Jeep Grand Cherokee 4.7L

[@505xjk6]

You just solve big problem for us WJ owners Martin. Awesome video .

[@jiffytoast]

Thanks for this video, I used a mechanical fan off of an 04 Silverado and a power steering pump from a 06 dodge nitro and the hose you linked on Amazon. Worked perfect. I had to fix a valve seat drop because of that hydro fan.

[@studioh45]

Your a genius and have excellent patients i have 2004 se jeep grand cherokee had it for 6 years 225,000 miles and still runs like new very quiet! Thanks for your videos you've helped me alot!!!!

[@martinbuilt]

I know that's what I have been telling people for years..Lol. Thank you!

[@agustinvelez517]

The way you work is very clean, you make sure you cover even the smallest details. Congratulations!!!

[@martinbuilt]

Thank you so much 😀

[@joyschtik]

GLAD I found your channel. Great tutorials, I’ve got a lot to get mine running again. Inspiration, desire and hard work are the keys to success. Thanks

[@martinbuilt]

Thank you I really appreciate that I'm glad you liked it and found it helpful.

[@717UT]

Love how thorough and informative you are Martin. I've been reviewing your video as I continue to plan my own hydro system delete on my WJ. Thanks again.

[@martinbuilt]

Thank you, Max. Glad you found it helpful.

[@jiffytoast]

@@martinbuilt hey is the NPT fitting for the end of the high pressure line to go into the steering box?

[@JF32304]

The mod I always wanted to do! Well done!

[@normbrag]

I had to come back to your channel here. since you helped me with my front passenger side panel... Now i think i have the problem with my cooling fan not working... Thanx for all you do on the tube here...

[@martinbuilt]

I'm glad you liked it and found it helpful.

[@steven6692]

Another great job martin! You allways find that ingenious way of douing things...me...on the other hand...got tired of looking at my old hydraulic fan and it went to the trash..( with that stupid solenoid attached)...so..for weeks i had no choice but to buy a solenoid from ebay with the hardness for $140...until today after seeng your video...yep...you just save me that much...just bougth two of those resistors for $5.00...well...let me tell you that 12 blade fan from ford and clutch are douing their job ok...had to buy a new shroud that cover the fan and it came with an electric fan that will be rigged just like yours...and the three rows alluminum radiator from ebay its douing a great job...just a little wider than the original and it takes some adjustment...i used the same power steering pump by having the hose made...so far so good...cheers!

[@mariovegapena9319]

Is better an Electric fan that a hydraulic sistem. Great video!!

[@martinbuilt]

This has been working much better than the hydraulic fan.

[@brettforbes7642]

Great tutorial I can’t wait to get my WK back and try all your mods i especially like the transmission mod. From NZ hello and thanks

[@mikesunderpressure1]

I've been watching a lot of videos you like one of the best mechanics I've seen

[@gregorysamaniego36]

I full agree with you! Mans untold rule never throw anything away you never know what will be or could be used for something. Because ten years down the road stuff is going to be hard to come by

[@martinbuilt]

That's for sure.

[@philbrown5641]

awesome video, just got a 02 Cherokee with 4.7 my scan tool tells me the solenoid is bad, was looking for conversion and you nailed it! my next project, thank you

[@martinbuilt]

Thank you, Phil, let us know how it turns out.

[@tylerhall1348]

@@martinbuilt what did you do about the check engine light for the fan solenoid?

[@martinbuilt]

@@tylerhall1348 at 33:15 I answered that.

[@tylerhall1348]

@@martinbuilt thank you i missed that part

[@neouae-gx6ue]

Hi there martin, in a WK'08 model 5.7 there 3 wires which particular wire goes to the resistor...

[@AlastairDEW]

Shot in the dark - what years mercury villager, mark 8.... Im watching JY's for inventory - only 5.2 jeeps around.

[@WJdriver000]

Yea im trying to find the measurements for a hydro wj radiator. Seems to me that almost all the other fans listed, like the Taurus. Are very small and will require a large shroud compared to the 5.9 fan. Lots of googling to be done. Im thinking ill just buy an aftermarket one that measures up similar once i can find the measurements.

[@McManus667]

I used the electric fan out of a BMW e60 5 series, fits almost perfectly just needs a bit of fan shroud extension at the top, and I run it with a PWM controller

[@WJdriver000]

@@McManus667 any idea what year ? I had found the stock wj shroud size. I still have to find a fan that fits.

[@jp9579]

Excellent job. A ton of work!

[@martinbuilt]

Yeah, it was but worth it!

[@bryanlail613]

This is the one I was waiting for, but since I did the solenoid mod, I'm liking my hydra more and more.

[@martinbuilt]

I glad to hear the solenoid mod worked for you.

[@winstonemerson2439]

Like I said genius.Should have came that way from the factory.Love how OCD you are about the fit and finish of your installations,I'm the same.way,lol.Keep posting these great informative videos.

[@martinbuilt]

Thank you I really appreciate that. I will keep them coming. I need to get this new shop of mine organized 1st.

[@christopherholcomb4377]

Just came across your videos and almost everything I want to do with my WJ you've done. Great videos and explanation on everything to do. Can't wait to start on the projects ahead

[@martinbuilt]

Awesome, thank you! Welcome aboard!

[@DS-wt7ul]

Martin, I did a poor man's version of this. Installed a severe duty fan clutch in my 4.7L. I have a Ram 1500 so it's a bit different, but cools way better now, even on the highway! I know its robbing me some power, but It's my daily work truck.; I'm not trying to put down 0-60 or 1/4 mile times. Works for me. It's also not as loud as I expected

[@martinbuilt]

Nice work, thanks for sharing.

[@alansunday]

Nice. Thanks for this video. Love how clean your engine bay is. I bought an 04 with the 4.7L almost 3 weeks ago now. I have a crack in the radiator on the driver's side. The hydraulic fan has wetness in the center of the fan. The 5.9L Grands are rare here, but I did see that Flex-a-lite has a fan for our models. Really thinking about getting that for when I change out the radiator. Can't wait to get this done and hopefully I can figure out what's going on with my oil consumption. Hopefully when I take off the valve covers I can see what might be going on there along with the PCV valve mod you show on your other video. Thanks again.

[@martinbuilt]

Sounds good let us know how it turns out.

[@alansunday]

@@JM-id8ft I did not get the flex a lite. After getting the radiator out and being up underneath, I found where a massive oil leak was happening which I thought was the rear main seal. Where it was parked, I didn't have the capacity to drop the trans. So I ended up replacing the radiator and putting back the power steering lines. Haven't had any issues since and it's been 7 months. But if I ever have radiator issues again, I want to change it to electric.

[@asapcornerstone7851]

If you ever sell that Jeep I would love to buy it . I have the same Jeep and motor but great job men.

[@pennypackmtb2542]

You can't call dibs on his jeep.

[@JF32304]

Martin will probably be buried in it. 😆

[@jamespecorella3245]

Another awesome video! Great work. I can't wait to do this mod to my Jeep.

[@martinbuilt]

Thank you James appreciate it.

[@LuisManuelHdez]

Your knowledge is exemplary. I had my radiator changed and I'm certain they didnt do the job as well as you. As a matter of fact still having some issues with the fan not kicking into full throttle!

[@martinbuilt]

Thank you, it's kind of unlikely that it will kick into full unless it really heats up. You can check the fan's operation by unplugging the temp sensor between the alternator and the AC compressor, the fan should kick into high . If it does it is operating correctly. I'm just not a fan of that hydraulic fan. No pun intended

[@LuisManuelHdez]

I'll try that. Thank you.

[@winstonemerson2439]

I did your ram air mod to my Dakota,havent done the hood seal yet.I used the existing air intake silencer,cut out the top,placed a K&N filter in the opening,made a metal bezel to secure it and reconstructed the bottom of the air intake silencer to replace the material I had to remove.Mine deviates from your design in that.mine still also draws air from the airbox as well.In my.application I think I will make a.steel plate for the underside of the hood that sizes it to the filter and put the foam on that for the seal.

[@martinbuilt]

Nice, I an also redesigning the one I made. Would like to see pictures if your Ram air. You can send them to my Facebook Messenger. Link in the description.

[@symy3386]

Great video. I have to do the same thing to my 2002 Jeep Grand Cherokee 4.7 liter. Thank you so much for this road map to conversion.

[@martinbuilt]

Thank you, glad it was helpful!

[@guerryhowell7834]

Wow, such an Ingenious design..... I will use some of your ideas on the cooling system for my Jeep 2000 Grand Cherokee 4.0 L

[@laaaaaaaalaaaaaaaa]

Excellent work that I will eventually follow for my WJ, but I want to comment on the efan controller install. I am using that exact same controller and water coolant temp sensor in my XJ to run the aux efan. First comment is that I am surprised you put the controller in a spot where it can be subjected to the elements. The electronics are potted and you sealed the connections to the high power wiring, but corrosion on the control terminals will eventually cause functionality issues. The other comment is temperature sensor placement. When the thermostat is closed, there will be minimal coolant flow through the radiator causing a fair time lag for when the sensor feels a change in temperature. This is less of an issue when the min coolant temp set point is significantly above the thermostat opening point, but if trying to set the efan to control right at the thermostat opening temperature, this is a challenging location to use. The preferred location in this case is in coolant line running to the heater core. This hose sees a more constant flow of coolant coming off the motor, and is better suited for controlling the efan when running very close to the thermostat opening temperature.

[@Silent-Lucidity]

Nice job! Your attention to detail is 2nd to none!

[@martinbuilt]

Thank you Rick, I appreciate that!

[@JamesLee-oe7mt]

Not real familiar with the Chrysler setup, but most import cars set the fan temps at about 10 - 15 degrees above thermostat temp. The stat will keep the engine at 180 degrees even when you are on the highway on a cold day. Setting the fan at that temperature will make it run constantly (and unnecessarily) because the thermostat keeps the water at 180 - even if you have tons of cooling coming in from driving etc. Again just a thought :) Thanks for the content!

[@marshallbacon2527]

I will be doing this mod on my WG 2.7CRD , cheers mate

[@martinbuilt]

That's awesome, let us know how it turns out.

[@LZDEN]

first class work Martin,that was a great job,excellent.

[@martinbuilt]

Thank you, I appreciate it.

[@joshuacotto4133]

@@martinbuilt Martin where u get the hydraulic fan solenoid new I only found used not new

[@timrichards8636]

this dude is a mastermind! wow!

[@mitchpelky2239]

You sir are one fine Master Craftsman... Hello from northern Michigan...

[@martinbuilt]

Thank you, Mitch

[@mitchpelky2239]

@@martinbuilt would like to be able to ask you questions in the future when I get a problemsome Jeep in my garage

[@martinbuilt]

@@mitchpelky2239 Yeah no problem, you can contact me on my Facebook. There is a link in the description.

[@marshallbacon2527]

Martinbuilt , I've just done a road trip from Ravensthorpe to Karratha in Western Australia - 2,092kms in 2 days , outside air temp went from 8c to 36c , summer is coming so 45c+ soon Before I set off I did your solenoid mod (half turn in) this saved the motor from cooking After I crossed the 26th parallel I had to turn off the aircon open the windows and put the heater fan on to keep the motor cool It's the only Jeep in town , every other 4x4 is a Toyota Land Cruiser 79 series 4.5 V8 twin turbo diesel , but the base price is $80,000 AUD I paid $250 AUD for my WG in Jan The fuel consumption rose with the solenoid mod from 8 litres per 100kms to 10.5 , but that's cheaper than a new motor

[@martinbuilt]

Thank you for sharing your experience with making the Solenoid Mod and glad to hear it worked out for you. That sound like quite the trip.

[@ctdope]

AWESOME video, as always. Only issue for me is, I dont do or know or like messing with electrical stuff. The earlier part with wiring inside the dash, is very confusing to me. All the rest of the mechanical parts, I get. I wish I lived close to you, I'm in Florida, to have you teach me (paid) classes on much of your knowledge.

[@meowMago]

Thanks for your awesome video! Great work. I will do this next step.

[@mitchb2440]

Thanks allot Martin! I was going to do this on my 4.7 but the only thing I was still trying to figure out is how to keep the check engine light off.

[@martinbuilt]

Your welcome Mitch!

[@Carlitos-nf8hs]

Cual bomba hidraulica hay que colocarle d3spues de hacer el cambio de hidroventilador a electroventilador

[@Airman..]

Very COOL build 👍 Subscribed

[@mlubnani]

Awesome job!!! Big regards From argentina!!!

[@martinbuilt]

Thank you!

[@Kolonol1]

Saw something extremely smart on this video that 99% of people skip over...solder the wire to the ring terminal!!! It cuts down on corrosion and cuts out contact issues through expansion and contraction...it's a Chrysler wire harness so ALWAYS ALWAYS ALWAYS solder!!!!

[@martinbuilt]

yes I like to reduce points of failure.

[@buddywilmoth4775]

Your videos are excellent. Great attention to detail.thank you.

[@martinbuilt]

Thank you, I appreciate that.

[@rodm5830]

I got a 02 Grand Cherokee. Recently put in a new radiator, now it leaks trans fluid, radiator fluid, and oil. I’m bout ready to send it down the road. Still runs great though.

[@martinbuilt]

sorry to hear that, what brand radiator did you use? There are some questionable manufactures out there. I purchased an all-aluminum radiator that didn't even come close to fitting and then the one I got that was made by OSC fit and worked perfectly. Don't give up.

[@rodm5830]

The radiator fit good, but I’ve been chasing leaks since I installed it. Found it leaking the other day at the threaded plug just below the radiator cap. The o ring was broken. The car is the age when everything starts going bad it seems. Still runs great though.

[@rodm5830]

@@martinbuilt I’m not sure of the brand of radiator. I’m sure it was a cheaper one.

[@stoichiometry147]

You’re a great resource! Thank you

[@jcstevegigs]

Great video! Not sure I’ll ever do this (or if I even could) but cool to see it done.

[@tliggexperience]

This is very interesting to me, I must be one of those few people who likes the hydro fan and how it works. What would be the main reason for doing this conversion? Enless it broke or failed. I’d say that at full speed the hydro fan can still move more air than the 5.9 fan (I have a 5.9 limited). Yea the hydro fan can act a little lethargic in stock form, it seems to give the bare minimum air requirement but in spite of that it’s never let my Jeep overheat in the most severe conditions. You cleverly showed how to turn up the solenoid too in the last video if you want to wake the fan up a bit and make it run cooler.

[@martinbuilt]

Even with the mod that I did to the solenoid, I would see temps at 215* plus and for me, that is to hi. I am trying to achieve the best performance not necessarily the best MPG. The engine will get it's best MPG at 204* that is what the PCM is trying to maintain but not doing a very good job at it.

[@williamsantore3557]

That aluminum bracket looks like the catch can z brackets that hold the can in place on a ram

[@Carlitos-nf8hs]

Martin que tipo de bomba hidráulica me recomiendas despues de hacer el cambio.saludos

[@zmotorsports62]

Very nicely thought out and clean installation. Mike

[@martinbuilt]

Thanks, Mike, I appreciate that.

[@brentonhumphries2134]

Hey it's Brenton from Australia I'm putting a clutch electric fan setup from a 99 00 wj on my 05 wj and just bring on the electric fan when a/c is on

[@martinbuilt]

Cool, let us know how it works out for you. Good time for you to do this since summer is just around the corner.

[@brentonhumphries2134]

@@martinbuilt Hi Martin the setup works good main reason for this was I was having power steering problems when driving around town steering just went heavy like it wasn't getting pressure now everything works really well.

[@warrior353jeansguerrero8]

98 Jeep Grand 🚙 Cherokee 5.9 now I see the print on your opening title or credits

[@s.b5412]

Many things get from you man thanks ...

[@chadenderle1328]

Love the videos Martin

[@martinbuilt]

Thank you, I do appreciate that.

[@pesnet7]

I loved how thorough and informative you are, Martin. Interestingly, my 2000 Jeep Grand Cherokee WJ has two fans, overlapping the radiator. And I realized that, what remains internally is smaller, it doesn't seem to be working. I've already applied 12VDC to it and it's functional. And about the wiring, one is ground and the other is the command power to work. Now I need to know what makes it work. Can you please guide me? Thank You!!

[@STIUSPSA45]

Just made Similar upgrade to my WJ 4.7 HO. Measured original Hydro fan solenoid and current is 0.3A, calculating replacement resistor give should he 47 ohm.

[@martinbuilt]

I simply measured the resistance of the solenoid and came up with 10 ohms and have never or had a sel light.

[@STIUSPSA45]

yes, but solenoid is not only resistance, solenoid coil have inductance also, that make difference. 10 ohms, more likely is ok, but with that possible create 5 times more current ( more likely limited in ECM), but 47 ohm resistor need be only 5W power rating, when 10 ohm need withstand more. anyhow, you make great content. my comment was about my own measurement.

[@scottlightseyoutdoors7491]

Heads up. I used a 99-00 shroud and fan. Bolted right up to the top two bolts. Modified the bottom two.

[@WJdriver000]

Does this keep it cool enough? Thanks!

[@jaredbrk]

Martin, My bleed screw is stripped. Can I just burp the system by squeezing the top radiator hose with the radiator cap off?

[@ricardoarandazolo87]

Wow great job👍

[@eibbornoswal7175]

Good luck finding those fans 🤣 I can’t even get them for my 5.9

[@fastfurious9489]

would a electric fan from a late model Jeep Liberty fit better without all the trimming............thanks

[@martinbuilt]

What year of Liberty's are you referring to? I'll look into it.

[@fastfurious9489]

@@martinbuilt Second generation KK (2008-2012) with iron block and alum. heads or 2005-2007.. Thanks love this channel I have a 2004 JGC OVERLAND with 4.7 HO... Martin there is something that you have not addressed, and that is the mount points for the coil springs, on most JGC 99-04 that I have seen with over 100k, they are rusted out and the spring is almost out of the mount. I replaced mine with an after market kit without buying new axles from the dealer. This normally not found until too late....anyway the kit I used to fix mine was www.ironrockoffroad.com/product/wj-front-lower-coil-spring-tower-replacement.html // Thanks for all of the great stuff, best for WJ on the web...

[@ypahihi]

@@fastfurious9489 Awesome.

[@MustAccord]

Thanks for the great video. Shame I cant do it on my 2.7 crd. As there is no replacement power steering pump without the hydraulic fan.

[@martinbuilt]

If you're able to hook it up hydraulically you still might be able to use the power steering pump. I could have retained the stock pump I just needed to change a few fittings to make it work but, opted to change the pump instead.

[@jennBourne]

Nice video but I think the lower hose is the hot hose

[@martinbuilt]

Thank you, but the lower one is the return or cooler hose.

[@Jolly-Sid69]

As always, great idea and execution. I am wondering if it is possible to select a smaller coolant pump wheel for this engine to increase the pump speed, and thus force the coolant to circulate faster. Regards

[@marcs8653]

Hi , thank you for sharing your knowledge. I am wondering if the hydraulic fan solenoid has 3 pins would it work to use a 3 pin electric fan with the resistor built in? I have the 2010 grand Cherokee 5.7l

[@jessemtz8626]

I'm thinking that fan shroud will rub against the fins of the radiator and cause it leak. Beacuse it looks like it lays right on the radiator fins

[@martinbuilt]

the fit to the radiator is very tight with zero movement between the two.

[@jessemtz8626]

Great work congratulations awesome solution for the hydraulic nightmare fan.

[@mattjones8034]

Martin, I followed the link and ordered the exact power steering pump with reservoir and it will not fit... in order to mount correctly the reservoir needs to be flush with the back of the pump(like to original is) . The one from the link angles back and is not flush.. I'll get it figured out, just wanted to let people know they may encounter fitment issues.

[@martinbuilt]

Thanks for letting me know.

[@mattjones8034]

@@martinbuilt that being said I love and appreciate your videos. Any idea on how I could use the old reservoir and cap off the extra return port that won’t be needed when running an electric fan??

[@martinbuilt]

@@mattjones8034 The old pump is to powerful and could blow the seals out of the steering gearbox. Here is the right pump. Power Steering Pump, amzn.to/3FH6hZv Sorry about that. Hope this helps.

[@mattjones8034]

@@martinbuilt appreciate it man!

[@firehelix4234]

Beautiful work, but what’s the purpose?

[@martinbuilt]

The hydraulic cooling fan would never cool my engine properly. With that particular electric fan on the hottest days here in Southern Nevada have no problem keeping it at or below 190ﾟ

[@darrenrebel8991]

Thanks a lot Martin

[@martinbuilt]

you are very welcome 😀

[@mrahmedar1]

Dear martinbuilt, you are truly a genius and an artist. Question: What type of fan has been installed?

[@martinbuilt]

This particular fan came out of a 98 Jeep Grand Cherokee that is equipped with the 5.9 l engine unfortunately they made less than 15, 000 with the 5.9 so they are somewhat hard to find.

[@farerse]

Nice install, how come you opted for the upper radiator hose when installing the adapter/temperature sensor ? The lower radiator hose have freshly cooled water from the radiator and when that isn't sufficient then the fan should kick on , or so I thought!

[@martinbuilt]

Flex-a-lite recommends installing it on the hot side most likely because the controllers lowest setting is 160 degrees this could be a little too hot if you installed it on the cool side. I'm seeing a 50 + degree difference between the hot side and the cool side hose with this electric fan. I can literally grab a hold of the lower radiator hose and it is just warm to the touch.

[@farerse]

@@martinbuilt ok thanks for the explanation, sounds like it's cooling adequately!

[@chrisgarcia1845]

Fantastic Job!

[@martinbuilt]

Thank you, I appreciate that.

[@donsscooters]

Why couldn't you replace the fitting on the hi pressure hose to the correct one and use the original pump?

[@martinbuilt]

That would work but because of the reservoir, the hydraulic line would not fit properly.

[@hayderalameer9092]

Wow awesome good job

[@josejuanalfaro3247]

This pawer stering for 4.7 its compatible for tha 5.7 i am that problem for mi jeep grand cherokee 5.7

[@martinbuilt]

I'm not familiar with the 5.7 equipped power steering

[@davidtovar3699]

OK pero que ventilador usaste? De que carro

[@johnboywaltonbeard4699]

Great Video! I would like to see the same for the 5.7 Hemi. My PS Pump Whines, louder when cold. And I have now been through 2 PS Pumps. Temp seems to be OK until the pump goes. Then when you sit at idle with the AC on, the temp just goes up and up.

[@countryhick1011]

i live up in sask so we got cold winters and when i fire up my 5.7 in the dead of winter the ps pump wakes up the neighbourhood lol

[@ninjacommunity1]

What’s the fix

[@ninjacommunity1]

The PS is the only problem with these trucks

[@flavince]

the 300c power steering works in this case. you must replace it.

[@star1713]

AWESOME JOB.COULD A CLUTCH FAN BE INSTALLED INSTEAD OF THE ELECTRIC? THANKS

[@martinbuilt]

Thank you, yeah absolutely you can install a clutch fan. Then all you need is the wire wound resistor to prevent the service light from coming on.

[@star1713]

Thank you. Love your videos.

[@cladmonitor]

Fantastic video and I mean fantastic!! After doing some looking on-line I was sure I was going to be stuck with the Hydraulic setup because of the PCM issue or the power steering pump issue and your video completely puts faith that this won’t be a problem. After a few months can you provide any update to how this went, any thing you feel you could have done different or even adjustments you made after the fact?

[@martinbuilt]

Thank you, no I couldn't be happier with this mod. Probably would have been nice if I could have found a more popular fan one that is more readily available instead of the one I used being that there's only fifteen thousand of these fans ever made. But I couldn't be happier with the performance this particular fan. Thanks again

[@mozpassion8996]

I wish you were in Mozambique. Would like to do this convention!

[@martinbuilt]

yeah that is a bit far. You can do it.

[@mozpassion8996]

@@martinbuilt I don’t think so, I don’t have the skills. I have some questions: the car is very hot inside, I think the heat of the engine is getting in to the car. Do you know How to solve it? My hidráulic fan is very slow and doesn’t change the speed.

[@martinbuilt]

@@mozpassion8996 check the solenoid for 10 ohms and the fuse in the Power Distribution Block under the hood number 16 O2 sensor fuse is shared with the hydraulic fan.

[@Idontanswerquestionz]

Can't you just change the orifice and hose to the ps pump to the smaller orifice & hose and keep your ps pump? Maybe the regulator valve in the pump also? Is the orifice thread to the pump the same?

[@martinbuilt]

The original pump has a larger threaded orifice and this is why the talk needs to be replaced.

[@samuelperry4450]

How did you wire up the rocker switch I’m not following that very well at the moment

[@notatacoma7621]

Have you tried installing a engine oil cooler on a 4.7? It would be interesting to see one done.

[@mikesanchezgsxr]

Should have got a 2 row for this project. Great job on those brackets though. Rrally good craftsmanship.

[@martinbuilt]

Thank you, Michael! Are you talking about those all aluminum radiators that I see on eBay?

[@riverbankfisher]

This is an educational video for sure, and it addresses what appears to be a widely experienced cooling system problem with Jeep WJ models. My 2004 WJ Overland was already converted to an electric fan of unknown origin before I purchased it, and when I recently bought a 2004 Laredo, overheating problems that started right away have forced me to have this same conversion done by a local shade tree mechanic out here in the sticks of the Third World. For the Laredo, a Mercedes electric fan from an unknown model is inbound at this very moment from the junkyard, where the "consultants" would only confirm that the donor vehicle bore a 4-Matic emblem, which narrows it down to maybe twenty Mercedes models haha. Anyway, I'll watch the rest of this clip now, to note down any pointers that I can mention to the surgeons I engaged for a princely sum equivalent to $20 USD. What could possibly go wrong?

[@STIUSPSA45]

W211 model electric fan is good size. Include PWM controller, that can ne easily control by arduino.

[@elitecamaroz28]

Wiring the AC this way will only turn the fan on when the compressor is on; it will cycle on and off with the compressor. Have you found a way to have the fan turn on all the time when the AC button is pressed in the vehicle?

[@martinbuilt]

Why would it need to run if the AC compressor is not on?

[@justinmotorfix]

Does anyone have a wiring diagram/ schematic for the electric fan I'm looking for the pin on the ECM that is for the e fan as some WJ's had electric fans from the factory because I believe is the same computer box for the 2.7, 4.0 and 4.7 are the same with the difference being the software

[@tgreen8810]

Great Video Martin. My question is how does your AC System working? Im assuming the ECM will turn on the Hydro Fan if the AC needed it, but since there is no Hydro fan anymore, how does the ECM control the AC system? does your AC system working properly on hot days, not exceeding pressures in the lines? Thanks.

[@martinbuilt]

Thanks, starting at 23:15 I explain how the A/C works with the E-fan. The ECM has nothing to do with the A/C.

[@TB-vt1oo]

So im currently trying to do the same exact thing to the same exact jeep, my hydrualic fan is run off power steering, now im not understanding where the power steering lines would be going once converted to an electric fan, hope to hear back , thanks - Tim

[@martinbuilt]

Remove the hydraulic fan with the hydraulic lines then replace the power steering pump with a 99 or 2000 and replace the high pressure line from a 99 or 2000, high pressure line from power steering pump to steering gearbox and run the return line from the power steering cooler to power steering reservoir.

[@TB-vt1oo]

Thank you im very confident in this build, thanks to your videos!

[@martinbuilt]

@@TB-vt1oo you're very welcome!

[@rickduran5302]

I really enjoy the videos man! Have you ever thought of making kits for the awesome mods? There’s some of us that are afraid to mess up and have it be a waste of money lol. I know you’d make a killing of them!

[@martinbuilt]

Thank you Rick, I appreciate that. Maybe once I get into my new shop I can start building kits for cooling systems and like my throttle body adapter.

[@rickduran5302]

@@martinbuilt Nice! And maybe do the hood scoop for the jeep too haha

[@ferdinandmedina9181]

From what car is that electronic rad fan?

[@garettpatria]

i want to put a clutch fan on my 5.7L. do they make one that will fit?

[@commongunowner2173]

What about the powersteering pump?

[@martinbuilt]

what about the power steering pump?

[@commongunowner2173]

What did you do about it?

[@martinbuilt]

@@commongunowner2173 you most of fast forward through the video. At 28:00 minutes I explain.

[@commongunowner2173]

@@martinbuilt thnk you, srry….your awesome, much appreciated!!!!

[@cemalbulbul9627]

perfect job . thank you

[@martinbuilt]

You're welcome!

[@nickruffin5686]

Could you have plugged the hydraulic fan hose outlet and inlet and keep the same power steering pump?

[@martinbuilt]

You can use the same pump but you'll need to change the orifice that is where you're attaching the high pressure line to the pump. This orifice would be the same as the pump that I used. This is because the orifice on the pump with the hydraulic fan is way too large and will move too much fluid to the point where it will cause the seals in the steering gear box to leak. You still need to change out the high pressure line as well.

[@dailyfilmfix469]

There seems to be arguments regarding the so-called 'best' cooling fan system. Several videos on the subject matter have indicated to never use an electric fan as your main cooling solution, while others say that they're better due to less front drag on the motor due to the fan turning. I'm kinda stuck in the middle and see the pros and cons of both solutions. I have the 4.0 with the belt-driven fan assembly and recently saw a video to upgrade the clutch and fan with parts that fit Ford Explorers, Expeditions, etc.. The fan has twelve blades as opposed to five and the clutch is supposedly better in terms of quality and reliability. Does anyone have any thoughts or suggestions? Martin, I'm assuming you feel electric may be the best, but I don't have a terminal for a main fan, only one for the condenser fan. Thanks everybody and I apologize for the long ass comment.

[@martinbuilt]

I find it funny that some videos out there would say that an E-fan should never be used as the primary fan, when the are countless vehicles that only have E-fans and work great in controlling the engine temp. I couldn't be happier since I've installed this E-fan in my Jeep.

[@dailyfilmfix469]

@@martinbuilt since I don't have a factory plug for it, I'll have to use a sensor with a relay unless I can tap into the condenser fan circuit wire to trigger the relay to turn the fan on.

[@themoviemaniac8416]

Are there no aftermarket electric fans that can do the same thing I wonder?

[@martinbuilt]

I've never been able to find a aftermarket fan that will perform as well as an OEM fan like the one I used.

[@WJdriver000]

Im still struggling to find one. Lol

[@cpthillbilly]

Martin, great video...I have a couple questions... 1. Can I do this mod using the 05 - 08 Cherokee E-Fan? I tried to post a link but it's too large. You can find them on amazon and the shrouds look to be a direct fit. (TYC 621220) 2. Can I keep my power steering pump? Can you explain that little better? I like the idea of the override button for deep water crossings, great idea.

[@martinbuilt]

That electric fan is an auxiliary to the electric fan. I don't believe it would ever have the power to actually cool the engine by itself. You must replace the steering pump because the one that's in there has too much power and will damage the seals on the steering gear box. Also The high pressure steering line is larger fitting diameter and can not be used.

[@cpthillbilly]

@@martinbuilt thanks a lot Martin!!

[@salata686]

Do it to my jeep please, great job man 🤙

[@martinbuilt]

Thank you!

[@llineedsadragstrip4089]

bad ass ride my o3 4.7 was fast can just imAGINE WHAT YOURs IS LIKE 0 / 100 love the ram air set up !!!!!!

[@martinbuilt]

Thank you, I really appreciate that. 😎