How To : Aux cooling fan/ condenser fan install with pics!

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Danny barber

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I need help on my install if u can contact me i will thank u




Ok guys,
My first thread here is going t be a how-to after some info. I will begin the how-to in the next post.

The story goes like this. I recently bought a clean 2002 Tahoe for hauling my kayaks and dogs and to keep the miles off my new Tundra. The air conditioning is cold while driving but at stop lights and idling here in the hot southeast the air leaves a lot to be desired.
I checked the refrigerant charge and it was good, replaced the fan clutch with oem, then replaced that clutch with a heavy duty version , cleaned the condenser and radiator fins, etc. After all this the air was the same, great idling at 1000 rpm or going down the highway but still sucking bad at low speed idle or in slow moving heavy traffic.

Then I came here , and elsewhere to read and find a fix and stumbled onto the TSB # 01-01-39-004A for adding an aux fan to the front side of the condenser. I still have not found a single instruction thread with pics , only the TSB text. So , I decided to do the reading and then do the install, take pics, and share here with people who might be able to use the info.
My apologies for all the reading you have to do prior to getting to the install but you have made it through the boring stuff.
I'm at work and will start the install shortly and in a separate post.
 
OP
OP
Knightstormz

Knightstormz

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Sorry, didn't get the alert that someone responded .
PM me your questions and I will try to help you out.
 

Rayola88

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Nice set up i did the 05 factory fan swap, I had a lot of problems i replaced everything in my 02 chevy tahoe z71 from the condenser, compressor high pressure switch, rear evap and expansion valve to my fan clutch 3 times finally after some research i got it perfect
 

corvette744

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Nice set up i did the 05 factory fan swap, I had a lot of problems i replaced everything in my 02 chevy tahoe z71 from the condenser, compressor high pressure switch, rear evap and expansion valve to my fan clutch 3 times finally after some research i got it perfect
So the 05 fan swap fixed your problem-what is the 05 fan swap??
 

DurrtyBurB

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Just did this mod on a 04 Suburban. Is it supposed to run every time the key is set to run?
 

ubejd

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hi
firs thing thanks for this great tutorial @Knightstormz.

like you i want to install an efan too, but my question is can someone describe a way to install this efan with a switch to power one/off when is needed like when not moving-driving, i need it during the summer after that i dont so i thought this method is good for alternator too,it wont put a load when not needed to work.

what do you think is it safer like this or is it better to do it your way.

thanks again and best regards.
 

Elevenjack

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I just did this mod today in my 04 Yukon. Everything went as the OP explained except 1 minor thing. The green wire under the fuse box that you tap into for the signal wire to the relay was in position C1 A3 (right next to C2 B3). The fan works as it’s supposed to. On with the A/C and off without the A/C. It is overly loud. Can’t hear from inside the truck unless the radio is off and a window down. I won’t know how it performs until tomorrow when I come home from work. I will update in a few days.
 

ubejd

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I just did this mod today in my 04 Yukon. Everything went as the OP explained except 1 minor thing. The green wire under the fuse box that you tap into for the signal wire to the relay was in position C1 A3 (right next to C2 B3). The fan works as it’s supposed to. On with the A/C and off without the A/C. It is overly loud. Can’t hear from inside the truck unless the radio is off and a window down. I won’t know how it performs until tomorrow when I come home from work. I will update in a few days.


im glad it worked for you my friend, will be waiting for your update on how it works.
could you check your power voltage how is it when its on.

im still searching for the - Harness to do mine, i couldnt find it in my local parts store and the delivery it takes up to a month, i might search on a used parts store.
 

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