I Deleted the CLUTCH FAN in my Tahoe and it Actually made it FASTER (E-Fan Conversion)
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- Опубліковано 20 лип 2024
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Parts and tools:
Dragy gps performance tracker:
amzn.to/35AjXpl
Fuse box:
amzn.to/2TMeDwk
Solder seal connectors:
amzn.to/3gGNV0c
PCM pins:
amzn.to/2SaZbJX
Wire loom:
1/2 inch- www.harborfreight.com/1-2-hal...
1/4 inch- www.harborfreight.com/1-4-qua...
Butane torch:
www.harborfreight.com/butane-...
Electrical tape:
amzn.to/3vzjkqE
Heat shrink tubing:
amzn.to/2SJNo5y
Heat gun:
amzn.to/3gEHhIV
Fan clutch tool for air hammer:
amzn.to/3vEDSxW
Manual fan clutch tool:
amzn.to/3xsjEZu
12 Gauge AWG wire was used for my harness. I recommend you try wirebarn if you can't source any locally: www.wirebarn.com/
Thermal fan switches:
180 degree
www.scramspeed.com/products/l...
190 degree
www.scramspeed.com/products/l...
200 degree
www.scramspeed.com/products/l...
0:00 Intro
2:51 Ditching the clutch fan
7:43 How a relay works
9:18 Explaining the wiring diagram
16:32 Building the harness
21:34 Two Steps backward
22:56 Back on track
28:28 Pinning the pcm
31:43 Flashing the pcm for e-fans
36:27 We have a problem
38:34 0-60 test
42:29 My thoughts on e-fans - Авто та транспорт
Love that you went over the wiring portion of this. Maybe I’m the lone geek of the group but I like working on these electrical systems. Making it look oem and tying into the factory system is definitely the way to go 👊
I don't like doing wiring but it's always nice to see someone do it so you can get pointers and see if they do something better
You're not alone... 😂👍
0:22 0:23 0:37 0:38 0:42
On my wife's 04 Tahoe, I built a long wand out of 1/4" plastic toilet / sink feed line, drilled 20 or so tiny holes all evenly in one side, plugged one end, and hooked up my air gun to it. I lowered it down vertically between rad and A/C cooler forcing air forward through the cooler, a ton of dirt / dust came out and her A/C has stayed blowing cold.
I did this to my 03 Tahoe LT about 16 yrs ago when i had to change my water pump, best thing i ever did for it lol. Still running strong. Had a guy in queens tune my truck the same time
I wish you had made this video 3 months ago when I did my fan swap. I managed to do it successfully but nobody else has a video as good as this one.
Stapleton had a great video of it with a Yukon xl.
How did you do the pcm flash
Not into GM at all, but gotta say, this is the best tutorial on how to wiring e-Fans I've come across youtube so far. Kudos to LSXMatt and Tahiti!! Can't wait to see what's coming to both your cars.
This put me in a mood to do some mods to my old Ford Tempo.
You just made my Friday night. Fridge right here. Gonna pound beers and watch the hell outta this video! You rock, Matt!
Feels like forever that I’ve been waiting for this episode!!! Thanks Matt for making such great videos. You’re the reason for my recent purchase of a 2002 Tahoe! Bought Efans when you first hinted at this conversion.
Badass man! I’ve been wanting to do this conversion for a while. Really cool that you did the 0-60 tests as well! Awesome results!
I've been watching most of all your videos on Tahiti! They have helped me out a lot ! Especially the brake upgrade. That was awesome!
These fans🔥
I can’t wait till you do the leveling kit I’m trying to do that to my 2004 Tahoe 2wd
yep. but all can do it witout pinning and flashing. with 2 relay and 2-step termal swich in collant hose.
Worth it just for the extra working space under the hood
@@JPVolvo extra space ? 2 little relay . 1 speed - fans connected serial , 2 - parallel .
Matt your the best man, I love your videos and have a 2000 Chevy Camaro z28 so I love watching your Camaro content
I just came across your channel and stumbled upon this build. Watched all of them to now... now I'm subscribed and waiting on the next vids! ABSOLUTELY awesome!
I can tell you're a wiring geek like me. Nice job and thanks for including that part. Not boring to me.
An in depth video but this is one of the best videos detailing the conversion from a clutch fan. It’s helpful for me doing one on a 2011 suburban. It’s a 2500 with the 6.0 and clutch fan. I’m 99% complete and the review of the HP tuner was the last bit of OEM info I needed. Thank you!
I have the exact same suburban and I’m trying to do the electric fan conversion as well. Would you mind sharing everything you are using for the conversion? Thanks in advance
Best thing you can do to a non E fan equipped truck!! I did it to my 00 GMC, and 02 Tahoe. Especially here in the desert. Stoplight with A/C going with that crap mechanical was miserable, even when trucks were new, swampy as humid air. It really shined when I pull a water trailer to wet down the tractor truck yard, chill air ( 110 day 55 degrees vent temp) at 3 mph letting the water tank pump spray down the yard. I did have to upgrade the radiator on the GMC as I wanted the tow package radiator. Tahoe came with big rad from factory. I used fans off of 08 6.0 Escalades for both. I did buy the harness from BP Automotive, I also got the optional high pressure switch from them that uses A/C high pressure to kick on fans not just temp. I also added a 300 amp alternator. Your wiring skills are like my brothers, good job. ( Hes retired now from Denver Intl Airport) I did see a 1 MPG increase on the GMC, nothing on the Tahoe.
I have an 03 burb with 5.3 LM7. I’ve been thinking about swapping to oem efan to help mpg and some more hp? 2003-2004 5.3 285hp. 2005-2006 5.3 295hp. Only difference is flex fuel compatibility and switch from mechanical to electric fans. Guessing the fan switch is what netted the +10hp.
The quality of work you do is amazing
I'll be tackling my wife's 01 Silverado this week and I am feeling a lot more confident after watching this video, thank you so much Matt!
I just replaced our '05 3500 rad and fan clutch. Amazing AC performance while parked in the heat, so much power drag everywhere else. A manual pusher +
Buick 3.8L eFan conversion time! Thanks for the vid!
Thanks for all of your videos bro they are helping me fix up my 2001 GMC Yukon Denali 6.0
Been waiting !! Now time to convert mine.
Been waiting for this one! Good stuff
Looks like a simple ladder diagram. It's good to see a plan come together like this. Gives me hope.
I'm very glad that you made this video. I am ready to do this conversation on two of my vehicles.
Nice job and a great video! Can't wait to do this to my TBSS.
Be sure to check the temp with a scanner. The stock gauge in these are kinda like a dummy gauge. 185-220ish will sit right around the 210 mark before going over.
That's because the engineers have determined that those temperatures are "ok" and within normal operating spec. Beyond and below that the needle will move to reflect the actual temperature.
Billy Commuter and Sally Home maker will bring the car to the mechanic if they see the temperature needle moving; even though it's not in the red.
On older cars that's not the case. My 91 Mercedes diesel reflects the correct coolant temperature ALL THE TIME. It's pretty cool watching it cycle through its motions. Leave the AC on with the car idling in the hot garage (our garage isn't insulated) and you'll come back to ~115*C temperatures with the fans on high. It doesnt get higher, just kinda sits there.
Awesome video dude this how UA-cam videos should be! Very informative, keep up the good work brotha!
This is the only way to add an e-fan. Very well done.
Probably best video series I have seen on the beloved ole Yukon’s / Tahoe’s
Glad the fans worked out, definitely have to do mine. Took at shot in the dark at the local dealer to see if they could unlock fan control while they were programming my master window switch, no dice. have to check the local tuner to see.
Sir I appreciate your time and effort you put into these videos
Going to do this to my 04 SS Silverado. Thank you so much for the how to video. Subscribed 🏁
Minute 24:32 grounds?
Love how Tahoe/Yukon same in many ways. I had e-fans. I saw no real difference in gas mileage. Stuck with traditional set-up. Nice video
Bro you are the Steve Made to car repair. Your videos help me out a 1000 percent
That relay box is nice I got just some cheap relay harness things with pig tails and had one or both melt and I had to re run some but I did find some relay sockets that you crimp the actual connections like yours but just individual which I highly recommend and it just makes things cleaner
Another great mod! I am not great at wiring & prefer to use the factory harness. Any posdibility you could go over the necessary steps to installing the factory harness?
Thanks for sharing all your mods!
I fab'ed one of these into the wife's 99 2dr Tahoe. Had to do some creative trimming and mounting but got it in and wired up quite cleanly. I did make a whoops and wired both fans into one relay almost melting the poor thing. Rewired two relays and it works like a dream.
thanks for this video I been wanting to do this on my 4.8 sierra for the same issue!
Thanks for another amazing video.
What a nice clean job you did !
Awesome shirt man. Ratt is one of my favorite bands 🤟
I've been wanting to do this conversion for yrs on my 03 Tahoe. I have all the parts, including the factory harness lol.
FYI-- fans up to 2014, are all the same. You def don't want to use an aftermarket harness. They don't hold up. On a really hot day if the electric fans kick on alot, the harness will melt. So if you can grab a factory harness, along with the convenience center with all the relays for the fan, do it. Another thing to think about---you probably have the 130-145 amp alternator, so you might want/need to upgrade to a 160 amp alternator. When those fans kick on they do pull power, and if you have the ac going, along with music, headlights are on etc, your amp gauge will dip. Keep an eye on that shitty Amazon wiring! Def don't want them to melt either. Again--these fans do draw power. Nice vid--again 👍🏻
its a voltmeter not amp. Cool story though.
@@mann_idonotreadreplies you are correct!
came for the fan clutch stuff, stayed for the Ratt T-shirt!
Matt! I love your attitude, your superb mechanics skills and knowledge, the clarity in which you teach others, and the fact so far I've never heard a cuss word so my Grandson who's 8 can watch and learn too. You're helping alot of people Brother, especially me, just bought my 3rd Yukon, only have 1 but have owned others in the past but mine has issues. It's a 2000 YUKON 4X4 5.3 SLT, 328,000 but you would never know, it looks clean and nice. My transmission hits hard in 2nd & 3rd, BUT ONLY after highway speeds, 50 mph & over. Then when I start again from a stop once first gear goes into 2nd, it hits hard, then the next gear, 3rd, then the next gear is a smooth transition. NOW HERES THE THING, ANYONE CAN ANSWER BUT I HOPE MATT DOES TOO. When I get off the highway I pull over at the nearest safe spot, shut the truck off for 2 minutes, start it up, goes through all the gears just fine, AS LONG AS I KEEP IT AT AROUND TOWN SPEEDS, UP TO ABOUT 45 MPH seems to be the sweet spot to keep it shifting correctly. HERE'S MY QUESTION: I I replace ALL the Solenoids located under the trans pan do you think that should fix my issue? I already replaced the shift sensor located on the driver's side of the throttle body. Any help would be greatly appreciated...
Sounds like your transmission needs a maintenance or (hopefully not) a rebuild.
Greets from Germany, I drive a 6" suspension lifted '03 Suburban on 35s.
Shop had to rebuild my 3rd n 4th gear last winter.
@@Rokx80 Sorry to hear you had to rebuild the gears, and thank you for the information. Your truck sounds nice. Mine has a 3in lift but going to a 6 eventually myself too. I'm going to replace the Solenoids in the 4L60-E Transmission first, if that doesn't work off to the tranny shop to spend about $2,500.00 to rebuild it. The truck is worth it, everything is pretty much new already from having to upgrade many parts this last year since I bought it. They're only going to go up in value, especially when the world is getting worse and worse, people are going to want 4x4's and trucks to bug out. My truck is my BUG OUT VEHICLE, it's set up for overlanding. Cheers from Southern Utah U.S.A. Brother. I live in America but I'm Welsh & Scott's Irish.
When the beat dropped at 2:50, I thought that beat from spongebob dancing with the jellyfish was gonna start playing 😂😂😂
Glad you ended up with 10AWG wire, these fans are power hungry. Oh and 10AWG wire is typically only rated to 30A, so you are stretching it a bit with the 40A fuses. Probably fine, but melting wiring is never fun. Bigger wire means less resistance through the wire, and less stress on the relays/fuses.
You have to watch out on the cheaper wire, anything under the hood should really be GXL or TXL automotive wire, because it is rated to 125C (257F) and way better suited for under hood temps. Most common off the shelf wire is only good to like 80C (176F). All the factory wiring is either GXL or TXL under the hood, and probably throughout the vehicle really.
I skimmed through most of the video but it looks like it was well detailed, this is a very nice resource for this mod. Thanks
Good stuff there Matt, thanks.
Smart work , thanks for sharing
Been thinking about doing this
This is the best video I haved seen about E fan on chevy's
I did a Hayden dual fan module,With the Radiator Probe the only thing is fans would over heat it and burn up,So the leads to the fans I threw in a 60amp relay to each fan and haven't had any problems.Great video.
Is your setup still working good I want to upgrade to e fans but I don't want to mess with pcm
Matt you should put fuseable links where your 12v+ tie into you main fuse block lug. Otherwise you have those 2-3 feet of wire un fused. Not a huge risk but for me worth doing.
Sweet setup man
I love these Tahoe videos I have an 03 Tahoe z71 I been working on
LOVE YOUR 80S ROCK T SHIRTS YO ....
Outstanding vid!
Thank you for the information provided
I appreciate ya Matt, I have a 99 chev tahoe two door that I'm building now and am incorporating pretty much everything you have on yours, your videos are not boring as shit like most
I knew the aftermarket harnesses had 3 relays and just assumed it was to run both fans while the A/C was on but now I see you run them in series to get both on a low speed I figured the tune says fan 1 and fan 2 so I figured it didn't matter but I assume that if mine calls for fan 2 it will cut off my fan 1 I don't really test that they both work manually like you did
Can't wait to do this for mine.
I love nice cold ac,that V8 screams. Did anyone notice the truck shaking at 37:47 or was it the camera??
I clicked on the video cause the dude was wearing a Ratt shirt, that is fucking awesome!
Yet another fantastic video! Super Appreciated 😀 👍I can't wait to do the swap once I get all the needed goodies. Question on the Tune what were they able to add over the stock Tune? As I just purchased an 03 Z71 and looking to add as much as possible without replacing headstones, cams etc for Now. Thanks Eddie J. Long Island N.Y
You can change it however you want. With HP tuners you can tune everything yourself. Or you can data log and find a good tuner to do it. These engines really wake up with a good tune. I’ve watched quite a few tuning videos trying to learn on HP tuners and you would be amazed by how much GM dumbed down the factory tune. I guess it was to please the epa.
awesome install video
Great work!
You obviously have great taste in music as well !!
You should get an Airaid modular intake tube. It will clean up the front of the engine a lot.
I got a 2003 chevy tahoe. With 190,000 miles on it. I really Love it. Best vehicle I've bought for awhile. Really comfortable an gets pretty good fuel mileage for being 6800 pounds haha
Thank you for a very well instruction Efan upgrade. I've got everything to make the conversion except someone with HP tuner to help flash the ECU. Can one be rented?
I did this recently with my 02, pin 33 was still having issues with my Blue/Red ECU connections, had two ECU’s programmed. Couldn’t get it to work, so I just spliced into pin 42 and solved my issue. But love your clean install.
Did your pin 33 have a wire already in it and was your ac compressor coming on ?
@@jimmyramirez8844 honestly I can’t remember but I had to jump the wire for both fans to work. I have a red green connector on my ECU, from what I gathered is you want red blue connectors or an ECU from a red blue.
Definitely doing this to my 03 gmc 1500hd.
I just did this upgrade on my 03 Yukon Denali and I bought a harness new on eBay for 50 bucks plugs in ecm program the ecm with efi live works fantastic
Can you show the link to buy the harness I have an 03 denali as well
When I did the E fan conversion on my 2002 Tahoe 5.3 I noticed. no difference in horsepower or 0 to 60 times
It varies , back in the 70's removing the clutch fan was one of the most popular " bolt off " mods done , it is called parasitic horsepower drag .....most often replaced with a flex fan , where at high RPM the blades flatten out ......high RPM is where it is most noticed improvement
you wont see much improvement until the clutch locks.
Hey mate any aftermarket wiring harness or kit you would recommend for us not so Electronically inclined, love the video by the way !
I did the same to my 03 Silverado, trust me you won't be disappointed. I commented back on one of your old videos and told you that you would love them. I bought the harness for mine though
With the factory harness was it just plug and play or did you have to still get into the computer to wire to the pins
@@daddyshark3896 I bought an aftermarket harness that was built for these fans, still had to pin the computer plug and tune it
@@daddyshark3896 even with a factory harness you would have to tune it regardless
@@USArmy05 oooh ok sounds good
Amazon has a harness made specifically for the conversion for $70. I did the conversion on my silverado and got the computer tuned to turn them on. It works perfectly. No need for Nelson performance
Do you know the part number? I would appreciate the info
Part # bro much appreciated
Definitely going to do this on my 02. And just run a inline hose adapter with fan switch until I can afford hptuners
What if my 33 pin is already occupied for the ac? I got an 01 Silverado and the pins occupied when I tried to put the e fan pin into the computer
You should check your refrigerant level. My trailblazer i run two electric fans from a 2002 camaro. With both fans on with low refrigerant was cold but not super. Then once I was able to determine my shrader was leaking it was cold even with no fans on at all.
video quality is on point now!
Thanks for the video. I’m looking to do this upgrade on my 2003 Sierra 1500. I have already picked up a larger radiator and will hopefully get the fan assembly and factory harness in a few weeks. My question is about the computer tuning to tell the fans to turn on. Will this work on my 2003? And if I can’t find a local shop to do it do you know any mechanics I could send the ecm to tune it?
Know a guy who did the e fan swap. One fan failed to come on when set to thru the ecm, overheated the transmission.
Hey Matt she's looking good man
Ur making me want a tahoe
Great vid.......lots of details.
Where did you get the wiring diagram for the harness? I’ve already done my swap but I would like to know how it’s wired just in case.
Yea the efan conversion is a good swap but sence I run a compition sound system makes it not a viable option right now but I'm gonna get a larger alt.then I'm gonna do the efans swap thanks again me and my yukon needs this kinda info.
Excellent. Get a tube of automotive electrical silicone grease and put some on each fuse & relay pin when assembling. In fact use it on all the electrical connection points. If the Auto Zone guy looks weird (or tries to sell you tiny light bulb packets of the stuff for way too much money) just find someone who knows what you are asking for. It will prevent corrosion down the road and helps a lot with the cheap Chinese metal used in pins and fuse blades.
I found an after market brand new fan harness for $30 on ebay. It was half the price you paid for clutch fan tool ! I thought that was funny !
are you going to upgrade the alternator now? I had to get a high output alt on my tahoe when i did the efans
I've never done the "tune" when doing the "E-fan" conversion, I use the factory fans with a "Stand-alone" controller from Flex-A-Lite. Been doing this since 2007, with absolutely 0% negative effects. The Flex-A-Lite controller has a temperature control range from 160°-210°. I always set it to around 170°-180° & it fires the fans up like clockwork.
Seems like a fan switch and relay would suffice you can always use two inputs on the relay for a/c purposes
The point is keeping it oem style
Buying credits solely for the purpose of triggering some fans seems a bit extra, I'll do it on mine at some point but only because it's already unlocked. We've all got different priorities when it comes to budgeting i suppose.
How does this have dislikes? You are appreciated sir!
as for the tool you can take a big adjustable wrench and smack the end of it with a hammer few times and it will come off. done several of these.
Great video very informative and to the point thank you.quick question does the fan clutch also hold the water pump pulley in place ?would I need nut to take the place of the fan clutch?
This is an old comment and you probably already figured it out, but no. the clutch and pulley are separate. You can freely remove the fan without a worry of your pulley coming off.
TIP MY HAT TO YOU..VERY NICE..VERY CLEAN JOB..WILL DO IT YOUR WAY..THANKS FOR THE HELP..WOW..
Just about to do mine this weekend good timing. \m/ \m/
Clean job as usual! I’m really curious about any mile per gallon gain from this
Yeah that’s what I want to know too
I noticed my AC performance degraded just a hair at an extended idle on an extremely hot day after adding an auxiliary transmission cooler that my suburban did not come with at all.
Now i have to do this mod to my 2001. Thanks
I just completed this upgrade. I bought an aftermarket harness. When I trigger fan stage 1, it goes to high speed. When I trigger fan stage 2, it goes to low speed. The trigger wires are blue and green. I matched them to the PCM plug of corresponding color per my instructions. I'm figuring the harness is just backwards.
I have a stock & beautiful 02' Blazer ZR2 4.3 & it's always ran below 210° down here S of Houston where it gets hot!
Now days it's running around 210° with a 195° thermostat & a tad higher when towing a small 5x9' utility trailer. Like 220° which it's never ran that hot or warm.
I've flushed the radiator, installed a new Severe Duty Clutch Fan (that I only hear on start up) , new coolant after the flush & new 195° thermostat.
I can't hear the new clutch Fan & I have no idea what temp they are supposed to kick on at, I did see somewhere that the Hayden 2786 Fan kicks on around 180° but I don't think so. Maybe I'm freaking out over nothing. It's just always ran around 200° max. (Just left of the 1/2 way mark on gauge) the gauge is good because I can see it when the thermostat opens at 195°. So IDK.
How would you reverse the polarity? I think my fans are pushing instead of pulling air.
I found the factory harness on ebay and fans on marketplace finally lol
Thank you info 👍👍👍