Hydraulic to Electric Fan Conversion 01-04 Jeep Grand Cherokee 4.7L
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- Опубликовано: 29 сен 2024
- Get rid of that hydraulic cooling fan and go electric. Used a fan from a 98 Jeep Grand Cherokee with a 5.9L. This Efan was only offered that one year with the 5.9L. Used a Flex-a-lite fan control and optional manual on and off switch. Using a 10ohm 100-watt wire wound resistor (to replace the solenoid) to keep the ECM/PCM happy, no engine service lite. I know the Efan I used is very rare but there are other fans that could be used like the Ford Taurus 3.8L, Lincoln Mark VIII, Mercury Villager, and some Volvo models.
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You just solve big problem for us WJ owners Martin. Awesome video .
Martin, I'd like to talk with you about the radiator conversion on the jeep grand Cherokee. I'm a 24yr technician for Chrysler. Loved your video, want to ask you some questions and possibly give you some feedback.
You can contact me on
Facebook facebook.com/Martinbuilt-2351766611763181
OK pero que ventilador usaste? De que carro
I dont understand this mod. Will the clutch fan not bolt right on like they do on the 4.0s
clutch fans rob Horsepower. Even if you did the clutch fan, you will still need to add an electric as they did in earlier models. I love this E fan gives lots of room to work on the engine, looks great and lighter then clutch fan or hydraulic.
If you ever sell that Jeep I would love to buy it . I have the same Jeep and motor but great job men.
You can't call dibs on his jeep.
Martin will probably be buried in it. 😆
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!
The mod I always wanted to do! Well done!
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!
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.
Thank you, Max. Glad you found it helpful.
@@martinbuilt hey is the NPT fitting for the end of the high pressure line to go into the steering box?
Martin, My bleed screw is stripped. Can I just burp the system by squeezing the top radiator hose with the radiator cap off?
I've been watching a lot of videos you like one of the best mechanics I've seen
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.
Sounds good let us know how it turns out.
@@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.
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.
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.
Hi Martin. Great Job as usual ;) Do you know any other stock (universal) fan will fit to this conversion?
Excellent job. A ton of work!
Yeah, it was but worth it!
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?
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
If you use a electric fan from a late model Jeep Liberty it’s a direct fit
What year Jeep Liberty would work? I would like to look into that.
What year liberty fits?
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
Do you do work for the outside?, meaning, if I want to do something on my jeep, when I drive by your place, or by appointment, you do it?
what is it your looking to have done? You can contact me at facebook.com/Martinbuilt-2351766611763181
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.
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.
@@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.
Hi Martin, new question. The adapter you drilled from 1/8 to 1/4 npt, it has a small screw to ground it. I ordered the same adapter from Amazon. I notice when you checked it with your heat gun it didn't have the second wire coming from the ground point. Is it needed or not? I installed mine, and grounded it also, but didn't work. I'm thinking the sensor is bad because many other people left reviews saying the sensor didn't work for them, so I going today to the autoparts to find a "working" sensor. Thank you.
Hello Martin, I'm a 2002 límited wj owner. I bought a ford Taurus 9 Blades fan from dorman. But, that one is a 2 fan speed that I don't know which controller I must use. Does the Flex a Lite that You use could be works for my fan? Thanks for your reply!
Is better an Electric fan that a hydraulic sistem.
Great video!!
This has been working much better than the hydraulic fan.
98 Jeep Grand 🚙 Cherokee 5.9 now I see the print on your opening title or credits
on the 2000 grand cherokee 4.7, is the coolant temp sensor used for the dash temp gauge AND the temp switch for the electric fan? i have an electric and clutch fan both?
I LOVE IT MAYBE ILL FIX MY WIFES!
Thank you. I'm glad you liked it and found it helpful.
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.
Wiring seems overly complicated, I know it’s an old video, but I wish you could make it more simple not everybody needs added switches, and all this other geometry
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
Another awesome video! Great work. I can't wait to do this mod to my Jeep.
Thank you James appreciate it.
GRANDE 👍 SUPER 👍⭐good hi 👋 Italy 👋
Good luck finding those fans 🤣 I can’t even get them for my 5.9
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
Awesome, thank you!
Welcome aboard!
How did you wire up the rocker switch I’m not following that very well at the moment
Cual bomba hidraulica hay que colocarle d3spues de hacer el cambio de hidroventilador a electroventilador
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
Thank you I really appreciate that I'm glad you liked it and found it helpful.
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.
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.
Martin que tipo de bomba hidráulica me recomiendas despues de hacer el cambio.saludos
Martin, I just started to have problems with my hydro. fan set up in my 01 WJ.
Thank you sharing this mod.
If I can find the correct shroud, does Flex o lite have an equivalent fan?
Nice job on the videos btw.. I’m an subscriber now!!! 👍👍
I'm sure that flexalite would have one that would fit well. I'm not sure that it would perform as well. I have never found a aftermarket fan that works as well as some of the OEM fans.
Thank you for watching and subscribing.
I'm an interest out of germany, so excuse me for some grammar failures.
1. how does the fan controller recognize the needs of the fan for A/C? If i'm on high speed, the fan shouldn't run, even if the A/C is switched on.
2. Did you recognized a change on your MPG? So with solenoid mod in a bad way, with electric with the same amount in a good way?
3. Does the sound of your car changes, because of the missing idle fan run of the hydraulic version?
4. i didn't see the opening vents (high speed) of the fan shroud you mentioned in the comments earlier, do you have a example search tag for it that i can find a picture of it?
Thank you! Your videos are very detailed, i like that a lot.
Hello Johannes, My dad was from Germany and my mom from Austria they met in the states. I haven't been to Germany since I was 12.
1. The fan control gets a negative or positive signal from terminals #7 and 8.
2. The solenoid mod is only bad if you turn it one whole turn. Good if at half a turn. Did not see any real difference in MPG with the electric fan.
3. Not sure what you're trying to say. I can not hear the electric fan from inside the Jeep. From outside of the Jeep I can hear the Electric fan more then I could hear the hydraulic.
4. Are you referring to the flaps of rubber on the fan shroud that open at cruising speed? There are 5 of them, 3 on the left and 2 on the right side.
You can also message me at Facebook facebook.com/Martinbuilt-2351766611763181
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!
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.
@@martinbuilt ok thanks for the explanation, sounds like it's cooling adequately!
That aluminum bracket looks like the catch can z brackets that hold the can in place on a ram
Very COOL build 👍
Subscribed
i want to put a clutch fan on my 5.7L. do they make one that will fit?
first class work Martin,that was a great job,excellent.
Thank you, I appreciate it.
@@martinbuilt Martin where u get the hydraulic fan solenoid new I only found used not new
That's awesome, if not just for the extra room. What's that purge mod your using for the coolant? And you mentioned the coolant hose adapter used was 40mm, I thought it was 38mm, think that would work better?
Thank you, I'm using a 10an to 3/8 NPT fitting with a 10an cap.
Fitting amzn.to/2K2TAih
Cap amzn.to/2HEvusM
this dude is a mastermind! wow!
Yeah this is all good if you have a machine shop.
Hey man, as always, very high quality work and detail. Enjoy watching your videos and learn something along the way. In this rare case, I just have to ask though, why? In my opinion I felt like you made a downgrade with this one. Added complexity of wiring, controllers, relays, more things to fail, etc. The hydraulic fan is pretty darn reliable with the caveat of regular fluid changes with the correct fluid that meets MS5931 spec. Just want to know your thoughts, which I may have missed. I do like the AN fitting on the bleed port. About to tackle the radiator replacement myself. Have you had any issues with the plastic thermostat housings, mine started leaking randomly.
Cheers!
I think it's one of the best mods I've ever done to this Jeep. It finally stay well below 200 degrees even today it was 111 degrees in Las Vegas and it never got hotter than 194. The hydraulic fan could never do that even with the solenoid modification that I had done in a previous video.
I haven't ever had any issues with the thermostat housing so far so good.
@@martinbuilt thanks for the reply. Interesting results with the electric fan. Makes it all worth it right there. Must be why the alternator was struggling to keep up, fan is drawing some amps to pull all that air. Was the overdrive alternator pulley enough to compensate for the underdrive crank pulley? Do you have any spare, modified solenoids? I'd like to try one. Coolant for me typically stays around 205-210 and oil will creep to 210-215. Over here in Virginia Beach we have hot and humid. But, would be nice to pull those coolant temps below 200. I wanted to try an all aluminum radiator but not sure how they fit, mixed reviews.
Yeah I do have a modified solenoid. The 205 to 210 sounds pretty much typical since the ECM is trying to keep the engine at 204 that is where the engine achieves its best gas mileage.
I don't have much confidence in the aluminum radiators especially if you're referring to the ones I see on eBay looks like the same cheap Champion radiators I had put in my XJ I've gone through three of them in just a few years. The stock alternator was doing fine only at idle was the problem and yes the overdrive pulley brought it back up to tolerable voltage at around 12.7 12.8 at idle
@@martinbuilt if you're interested in selling, I'd like to try it out on my Jeep. I'd rather the Jeep run cooler, that's for sure. Right, the eBay aluminum radiators seemed questionable aside from Griffin which is awfully expensive.
@@WJsLifeonaBoat You can contact me at facebook.com/Martinbuilt-2351766611763181
Yeah, the Griffin radiator I'm sure is a quality piece but way too much. Then need to send me so I can do a video on it...lol
Thanks for your awesome video! Great work. I will do this next step.
This pawer stering for 4.7 its compatible for tha 5.7 i am that problem for mi jeep grand cherokee 5.7
I'm not familiar with the 5.7 equipped power steering
Dear martinbuilt, you are truly a genius and an artist. Question: What type of fan has been installed?
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.
Great video! What positive ignition source did you use to wire the the controller at terminal 9?
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.
Your welcome Mitch!
From what car is that electronic rad fan?
Awesome job!!! Big regards From argentina!!!
Thank you!
What did you hook your blue light power and ground to did you run positive to the fan itself?
Thanks
One end of the blue light goes to the to the power side of the fan motor and the other side goes to ground.
Why couldn't you replace the fitting on the hi pressure hose to the correct one and use the original pump?
That would work but because of the reservoir, the hydraulic line would not fit properly.
The way you work is very clean, you make sure you cover even the smallest details. Congratulations!!!
Thank you so much 😀
Is this possible to do with the wk and avoid the cel you get from switching to an electric fan?
I would think you could by adding a resistor to the wires that go to the solenoid once you figure out the actual resistance that the solenoid is putting out that way you can fool the ECM
Was there a reason for using a e-fan from a zj instead of the e-fan from an early we? Btw love the vids. Keep it up
That fan uses the basic same motor as the Ford Taurus 3.8 fan that moves a ton of air. The 98 ZJ shroud and fan are a great fit and I like the rubber flaps that open at highway speeds.
Will this work for a 05 jeep grand Cherokee limited 5.7l hemi?
Yes. But you must replace power steering pump for the 300c.
What about the gear box ? Do we need one from the 4.7 that didn’t have the hydro fan set up ?
No need to replace the steering gear box.
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
Thank you, Phil, let us know how it turns out.
@@martinbuilt what did you do about the check engine light for the fan solenoid?
@@tylerhall1348
at 33:15 I answered that.
@@martinbuilt thank you i missed that part
Hi there martin,
in a WK'08 model 5.7 there 3 wires which particular wire goes to the resistor...
Your list above doesn't include fan and shroud links. Do you have them?
As I mentioned in the video there are less than 15000 of these electric fans ever made the only way you can find them is used at your local salvage yard or perhaps on eBay. Good luck 👍
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!!
Excelent
Thank you 😊
Hi Martin!
I was wondering which fan controller to use, you two part numbers listed?
Also, I found a 98 Grand Cherokee 5.9l fan asm. The fan has three wires. Which ones are you using?
I can’t wait to get my 01 WJ running!Thanks again for sharing!!
ford ranger clutch fan.
Hey Martin, does the fan have to be a certain distance from the radiator to have optimum cooling? 1/2 or 3 in from radiator surface? I bought the OEM replacement style electric fan that goes in front of the nightmare hydraulic system, and want to mount it to stock shroud. My mechanic chopped all mounting brackets, so I have no reference as to where it goes, so I can make brackets, but dont want it to be too close or too far. Thank you.
I would recommend at least one inch from the radiator, but this all could depend on the shroud that comes with the fan. The manufacturer of the fan with the shroud should have been engineered for optimum performance.
Thank you for watching.
@@martinbuilt Thank you. I will be mounting the fan in the same place as the factory did, right on the edge, where the hydraulic assembly keeps it. Thank you.
Nice job Martin.Where are your polished valve covers?
Thank you Dan! I'll install them as soon as I install my 08 cams. I thought it'd be a nice topping off to the 08 cams.
what is the fan control module? Brand or model?
amzn.to/4dGQYSL
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.
I simply measured the resistance of the solenoid and came up with 10 ohms and have never or had a sel light.
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.
Are there no aftermarket electric fans that can do the same thing I wonder?
I've never been able to find a aftermarket fan that will perform as well as an OEM fan like the one I used.
Hello, as for the other year vehicles in which you can use the fan assemblies, would you happen to know the year(s) of them? Also, was the radiator used from the 4.7 WJ itself?
Hello, you could use a 97 Mercury villager fan. I would also look into the lincoln mark Vlll And maybe some Volvo fans would work as well. I use the factory installed radiator.
@@martinbuilt thank you! I plan on doing this as the summer rolls along! Thank you for your insight 👍🏽
Isn't there any Grand Ckerokee models that come with an electric fan and radiator that would fit? Do you think the entire radiator and E-Fan from the 5.9 Grand Cherokee would work in the WJ 4.7??
I'm doing this mod and the pressure line from the pump collides the pitman arm when turning right, did this happen on yours as well? I got the hose from a wj at the junkyard. It collides right at the bottom where it bends back up. Thanks!
No I had no issues with mine at all.
Basically what you end up with. Is the power steering pump and lines hooked up exactly like a 2000 Jeep Grand Cherokee with a 4.7.
@@martinbuilt Thanks! I think I got mine off of a 4.0......I've done some research and they're a little different.
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.
Martin I am in the process of doing this mod right now and just had a question. On your wiring diagram for the gamma switch, you have arrows on 3A and 3B that point outwards. Is that indicating that you are installing jumpers from 3B to 2B/4B? Or is that just indication of the switching mechanism? Also, did you tie 3B(12V switchable source) in with terminal 9 on the fan controller? Just want to make sure I'm not missing anything. Thank you in advance!
Where did you pull the ignition signal wire from?? I found the AC clutch wire, where did you tap into the ignition signal wire.
If I remember right I think I pulled that from one of the cigarette lighter power ports. It comes on only with the ignition in the on position.
@@martinbuilt funny, that's the exact port I was looking at.
Dear Martín, cordial greetings from Ecuador. I am also converting from a 2001 gran cherokee 4.7. I will use the electric fan motor from the taurus 3.8, I will keep the original fan, I will put a thermo switch 92 to 96 degrees Celsius, I plan to keep the original thermostat of 91 degrees Celsius. Any advice or suggestion. Thank you
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.
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
Cool, let us know how it works out for you. Good time for you to do this since summer is just around the corner.
@@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.
Great video! Do you think this mod would work for a 2010 Jeep limited model with a 5.7?
Does the 2010 have a hydraulic cooling fan? If so I think it could be done.
would a electric fan from a late model Jeep Liberty fit better without all the trimming............thanks
What year of Liberty's are you referring to? I'll look into it.
@@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...
@@fastfurious9489 Awesome.
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
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
Installed a mechanical fan in my 02 WJ 4.0 10 years ago, troublefree.....
I'm A Lady that doesn't mind getting dirty.... Every guy or shop tells me something different.... I'm having a power steering and start hesitation.... I don't care for social media.... My Jeep looks like yours.... 2001 Quadra Drive Advance Trac RCS V8 4.7.... 247 J/272.... Think I'm having a cooling fan, heat a/c issue also.... Love This Jeep, learning a lot from you.... Anymore tips would be great 😎
does the fan change in RPM after you turn on the A/C or as the engine gets hotter?
@@martinbuilt Have all seasons, hesitates during start up no matter, have to give it gas.... When heat is on cool air comes from passenger side.... When a/c is on cool on driver side.... Haven't had to add coolent in 10yrs....???? Always reads high and over for oil and trans....???? But this is the 3rd power steering issue.... So I just did rear control arms myself.... Why not this.... It's such A Smooth Ride 😎
@@yesienagiancaspro7520 Clean your IAC valve and throttle body...the problem with the A/C and heating is the blend doors are broken very common with the WJ's.
I've always wanted efans on every viscous hub vehicle I've owned, but haven't heard of a fan controller that doesn't have a high failure rate. Not worth a chance of cooking my mill
Martin,
Was thinking of doing this on my 4.7l HO. I have a question however.
Do you think it is possible to run a mechanical fan off the 4.0l WJs?
I personally would rather have the cooling power of a mechanical fan and loose a little MPGs as I don't want to overheat the engine.
Let me know your thoughts.
What is the music at around 2.5 minute mark?
Ready-Set-Go!
By: Magic In The Other
Heads up. I used a 99-00 shroud and fan. Bolted right up to the top two bolts. Modified the bottom two.
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
the fit to the radiator is very tight with zero movement between the two.
Great work congratulations awesome solution for the hydraulic nightmare fan.
Would you recommend the ebay fan and aluminum radiator combo for this project?
I personally doubt that that radiator fan that they supply with it would be adequate.
Many of the aftermarket fans that i've had experiences with will not pull the same or better CFM than the OEM fan.
@@martinbuilt thanks for the input great video by the way.
I have a 2004 Jeep Grand Cherokee Laredo with this Hydraulic fan. I just had to rebuild the motor because the previous owner overheated the motor because of the fan, they said. I got another fan from the junkyard but it just looks like it spins so slow when the jeep is running. I might try you hack to speed up the fan or maybe even switch to the electric eventually ! 2 questions. How much did it all cost ? And I didn't understand where the 3 power steering lines that Were on the fan went to ??
It cost me around $230 fortunately I found the fan at Pick-A-Part where I only paid $27. Yeah you have three hoses that are on the hydraulic fan after removing it one of the lines from the cooler will go to the new power steering reservoir and then the high pressure line from the power steering pump will go directly to the power steering gear box. The third line from the hydraulic fan is another return line which is simply deleted.
@@martinbuilt what pressure hose did you use ?
@@cameronramey2246
Power Steering Hi Pressure Hose amzn.to/2JYeuyS
Does anyone know, do make the fan a puller or pusher, does it matter? Want to do this mod soon.
I'm not exactly sure what you're asking, but this fan is a puller.
Pusher fans would go in front of the radiator.
Thank you for watching.
Oh ok. I saw a few videos where they explained how to reverse the fan blades. But ok. I get it. Thank you Martin.
Nice video but I think the lower hose is the hot hose
Thank you, but the lower one is the return or cooler hose.
You’re a great resource!
Thank you
What kind of temps do you see where you live Martin? I’m out in the middle of the Mojave near Death Valley. And let me tell this hydro fan seems to not be able to keep up at all, I’m sitting at a constant 210+ and we are barely cresting the mid 90s right now (we usually see 110-120 throughout the summer)
Excellent video as always. I’m actually currently working on the ram air setup you have too!
I'm not far from you, Las Vegas. I see temps close to yours. Had the same problem with the hydro fan. Thank you I appreciate that!
martinbuilt did you notice any drops in mpg?
None that I notice.
Try putting in a 180 degree thermostat.
That should help out!
And make sure all the air is bled from the cooling system!
Very important!