03 Silverado 2500 Electric Fan Conversion (9 Blade HD Fans)
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- čas přidán 27. 03. 2021
- All you need to know about swapping to Efans on an 03 Silverado 2500!
6.0, 4l80, Speed Engineering Headers and Exhaust.
Nelson Performance Electronic Fan Harness
nelsonperformance.com/collect...
9 Blade Electronic Fan Assembly
www.rockauto.com/en/moreinfo.... - Auta a dopravní prostředky
Best video on this swap yet! Thanks
Thank you, I really appreciate the feedback!
I can confirm that my 2004 1500 suburban has the 34" radiator core
I don't think one person's commented with the 28", that's odd.
Great Video.
Thank you!
Thanks, after watching many videos on how to get this done, this one helped me he most, purchased the same parts, honestly took me like 4 hours not rushing it just enjoying my Sunday, had it tuned at a local shop the next day. I have a 04 Sierra 2500HD, still fresh where i live so i haven't tried it in the heat, will follow up in a couple of month, but so far really happy, feels quicker on take off which helps when merging and taking off.
I think the biggest difference you'll notice is the air conditioning, WAY more consistent, gets cold and stays cold! I'm not nice to mine, and I can attest these cool way better than the mechanical. You can tow up a grade all day and the needle stays put. Glad you liked the video!
Yes the 04 has the 34 inch at least mine does but my suspension has HD components but it's not a 1500hd
I just found your channel. I just finished swapping my water pump, and was researching my air conditioning. My ac will get cold while driving, but when I stop, it gets super hot. From your video and the comments section, this swap should help my ac, right?
Grat video, how are those fans holding up? Did you upgrade your alternator too? If so what did you replace it eith?
Fans are doing great, not a single issue with them or the Nelson kit, I love it. Truck gets to temp faster, stays cool easier, and ac is more consistent. Stock alternator, but I found the 145amp alternator from the 2500hd is often cheaper and a direct swap! Thanks for the feedback!
I'm thinking to get #105398 summit electric fan whole kit for my 2000 5.3 silverado but it's kind expensive
does this kit same as 2000 5.3 silverado
Will this fit my 2002 chevy silverado 2500 hd?
great video, thank you. considering this for my 04 5.3 1500. what do i need to look for in terms of turning on the e fan option on my pcm? can the stealership do this for me or do i have to look for a local tuner or will a full featured obd2 with can bus feature access the e fan option
Unfortunately it involves refreshing the pcm so it would need to be a tuning device, I highly recommend the hpvi2 from hptuners, but many other platforms will do it. Not sure if a dealership would do it for you, but wouldn't hurt to call and ask. You'd pay around the same price to have a tuner do it as you would to buy an hpvi2 and do it yourself. If you have no plan on learning to tune, it's still very handy. Speedometer correction if you regear or change tire size, bidirectional diagnostic controls for engine and transmission, as well as disabling CEL for o2 sensors if you ever ditch your cats. BUT. They're a little tedious to flash, unplug radio fuse as well as any trailer brake controllers and lights before you flash! If you don't think you'll use it again, I'd just pay for a good tune and hit 2 birds. Either route will cost you $500 or so. But a heads up, mpvi2 is on backorder at the moment. Thanks for commenting!
@@EventuallyPrettyGood Thank you for the excellent help and information!
Will this fan be ok on a 04 1500?
بطل 👏🏼.
My 2001 z71 1500 has the 34 inch
Do you know if Nelson Performance is still in business? I cannot get any response via email or voice calls to their listed number. Thanks for the great efan video!
2004 gmc 34 inch
Green wire to green connector 33 and blue wire to blue connector 42?? Is that correct?
Hi I have a 2002 gmc serra 3500 with 8.1 and allison transmission my radiator core is 38 long x 20 tall and overall length of 42 what fans would fit this radiator? Any help would be greatly appreciated thanks
Are you measuring to the edges of the core or edge of the tank? I'm not sure I've heard of a 42", if the core itself is 34" the kit in the description will work for you, not sure otherwise tho. Also not sure if the Nelson harness will work with the 8.1, however, they do have a harness that works using a temperature prove separate of the computer
Thanks for your replying, I had recently asked how you efans were working, again thankyou for relaying. Question, you said you used a 145 amp alternator, right? Was that plenty enough for those fans at idle? Or would you recommend a larger and what brand? Again, Thankyou for sharing your experience?
Absolutely, even the stock 105 amp will run them, the 145 is just nice if you jump other vehicles, run accessories a lot, use an inverter etc.. I mainly upgraded mine since it charges the battery on my trailer
Will the 05-06 Tahoe wiring connect Right to the 9 blade fans,and how many amps is your alternator? Thanks
That I don't know. But I have the 145 Amp alternator. Tip: if you need to replace your alternator, buy one for an HD silverado. Direct swap, more power than the 105 amp, and it's USUALLY cheaper.
@@EventuallyPrettyGood thanks for replying.did you purchase the wiring for 03 or 11
I am in the process of this swap on an 06 2500hd. I went with the gm wiring harness that has the relay mounted near the under hood fuse box. My issue is I only get the drivers side fan to activate. The passenger side one has yet to come on. The one fan kicks on at 208 degrees. I thought they both came on low speed. Any thoughts?
If I remember correctly, the passenger side fan only turns on if the ac is turned on (to cool the condenser) or at a higher temp threshold than fan 1. If you enabled the fans in the pcm yourself, double check that it is set for dual fans. An easy check is if you have a scanner with bi directional control, or in your tuning software. With hptuners, open vcm scanner, diagnostic button, tab for either system or fans, you'll be able to enable the fans individually. If it doesn't come on with ac, or when commanded by a scanner or tuner, double check your pin on the pcm for #2 fan (green wire iirc). Hope you get it figured out, I promise the swap is worth the hassle!
@@EventuallyPrettyGood Thanks for the fast reply. I have an bi directional scanner but I can’t find the option for the fans. The pcm was flashed by black bear tuners and they said the fans were enabled. When I turn on the ac the drivers side fan comes on. Maybe the engine temp and condenser temps are not high enough to enable the passenger side fan. I seen several posts and video’s saying they both should come on at engine temp. I’m at a loss
@@bradflood7112 Do you have any way to look at the tune file from Black bear? There's a few different fan configurations that can be set
@@EventuallyPrettyGood I’m sorry. I do not. I wish I did.
So get the alternator for a 2500hd and it's direct swap? Asking for a 2002 1500 silverado
Not sure if it's a requirement, but yes, the 2500hd alternator is a direct swap, supplies 40 amps more juice and usually cheaper.
@@EventuallyPrettyGood thanks I just wanted to know... so just ask the guy at the counter for a 2002 hd silverado alternator?
I’m doing the swap on my 2005 Hummer H2. I just bought the same fans as you did and I got the BP automotive harness, I think it’s a little better it has more of an OEM look and it’s longer harness. Anyway what do you recommend for the temperature to turn on the fans? For Fan number one what temperature would you recommend to turn on and off? And what about fan 2? Also I’m doing 160° thermostat so take that to account. I was thinking 180° to turn it on on the first fan and then 170 to turn it off. On the second fan I was thinking turning it on at 185° and then turning it off 175 what do you think?
I'm not an expert so don't take my word as gold, but I think with your fan settings would be right on the money. One thing to note (you may already be aware) the pcm wants to see a certain temp before it goes into closed loop, usually around 180 or 190, so definitely take a peak at that while you're in your tune. Please comment back after the install and let me know how the BP harness works for ya, I'm still not a huge fan of the Nelson relay location. I pull my pcm and flash with a bench harness for safety and it makes it a pain. But you'll love those e fans, get ready for really consistent cold ac. Easily the biggest difference to me. Fan #2 will cool the condenser whenever needed, and it makes for some damn good ac lol
@@EventuallyPrettyGood Thanks for the reply. I will certainly update you on the BP Automotive harness when I install the fans. I should get the harness this week and the Fans are coming next Saturday, I'm thinking because of the Holiday On Monday. But nevertheless, I am excited to do this swap. I am going to reference this video and another video where the guy uses the BP automotive harness. It is longer and it hides behind the Fuse box. As far at the fan temps. Thinking about what you said about the pcm wanting to see a certain temp be3fore it goes into closed loop I will probably change the temps a little higher. I'll ask the tuner to turn fan #1 at 185, turn it off at 178. Second turn on at 195-200 and off at 188 somewhere along those lines. And then have him turn on the fans automatically when I turn on the AC. Stay tune.
BTW I think going with the Heavy-duty Fans like yours was the best choice. My Hummer is a huge truck so it will need big fans like the one you got. I also bought an all-aluminum radiator so I will have a better cooling system then I did before. I just got the Hummer and it only has 57k miles so I want to take care of it as much as possible. I'm in California where the temps are always hot. Right now, it is 109 degrees in Riverside Ca so yeah I need this conversion.
@@EventuallyPrettyGood I almost forgot, I did buy a higher amp alternator. The Hummer H2 comes with 145 amp alternator so I purchased a 160 amp. I think it is safe to do that. Did you change your Alternator?
@@buddyrebel_Garcia I believe you can also just change the temp requirement for the closed loop, then you still get the best of both worlds. I tow a lot with mine, also a 6.0, even at 15k combined (truck trailer and truck on trailer) it still never gets over 200 degrees, they're overkill if anything, but definitely nice to have. Keeps the Trans cooler real happy too!
@@buddyrebel_Garcia Absolutely safe. It will only output what is being drawn. I have the 145 amp in mine, but it came with a 105. I keep jumpers and a lockout kit with me, I jump vehicles fairly often so the amperage is nice to have, if you're into audio It's also nice to have. If you run inverters, jump other cars, or have amplifiers and such, look into doing a "big 3" wiring upgrade, fairly cheap and easy to do. I've jumped my semi with mine, tho it had to charge it a few minutes first
What years do they have the 9 blade setup? I wanna pull one from the junkyard
I believe 2011 up to the next body style on 2500 and up, not 100% on that.
Any update on the fans? They still working good?
Still perfect! Gets up temp faster, ac temp stays more consistent, especially idling in traffic, no issues, noises or nuisances. Probably the best thing I've done to it!
I used a 2 foot crescent wrench for $25 from harbor freight to break loose the clutch fan on my truck.
Hello, do you have a part number for the fans? Thanks in advance
TYC 622210 is the part shown in the video, the rockauto link in the description has the alternative part numbers
Thank you for the quick reply. My 8.1 suburban has a 38” radiator core not the 34”. Will this fan fit? Or will I need to find one larger? Thanks again for the help
I wanna do this in my 06 how much better milage do you think it would get
Little to no change in mileage, however, noticeably better throttle response, more consistent air conditioning and WAY easier to work on the accessory drive. Just having the room is worth the swap imho
@@EventuallyPrettyGood Same results here, these trucks are to heavy for the fan to make much difference in MPG
@silentbravo Oh definitely. Only mod I've done that really affected mpg was regearing, and even that only got so far. The price you pay only having a 4 speed and weighing 3 tons lol
Subbed, I got an 05 2500HD I've been wanting to do this on. Any idea where I can get a rust-free long bed? #MidwestLife
Thanks for the sub! Also in the Midwest, also looking for a rust free longbed 🤣 People want $2500 for a good bed around here 🤬
@@EventuallyPrettyGood Oh i know its ridiculous, but then again finding one that's rust free is a needle in a haystack ordeal. I'll keep looking and if I find 2 ill send you the info.
@@Shorey121 I think I'm just gonna weld in a new bedside, have one side previously replaced.. I'd found one dent free rust free in my color last year for $500 and didn't snag it, been kicking myself since!
How are the fans doing a year later
Perfect, not a hiccup! I think the biggest difference I've noticed is way more consistent a/c temp. Stays ice cold the whole ride now!
will this work on 1/2 tons?
Yes it will
How long should I set aside for this ??
Skill set is probably middle of the road … looks Tedious…
On the actual installation, I'd say probably 3-4 hours. The question on time would be lining up a tuner if you don't already have a tuning device. If you need to take it somewhere to have these fans enabled in the computer, you'll need it towed there unless you live within a few miles. I'd highly suggest an mpvi2 if you don't have one. Even if you don't plan on tuning, very handy for enabling fans, calibrating speedo if you change tire size, as well as a slew of diagnostic controls. You'll pay less and have the device for future use!
They won’t turn on until you get the tune right?
That is correct. They must be enabled in the pcm before they will operate, not exactly sure why it's set up that way. If you're concerned about getting it to a tuner or a friend capable of flashing it, you can opt for an override switch with the Nelson harness in the description, this can be used to manually enable them until you get to a tuner
If the alternator takes a dump while you're driving it with the mechanical fan he truck will still go and run cool until you cut it off
@mikedownen3962 The fans would run longer than the pcm would anyways, gm ecm won't power on under 9v or so. Plus way more room for alternator and belt replacement
Did this improve gas mileage
Nope. But, slightly better throttle response and way more consistent ac
Slacker
Me? A slacker?! Okay maybe. Lol
And the wrong coolant dex cool is orange or pink reddish not green