Dual Electric Fan Replacement

[01AzYukonXl]

I have a 2001 Yukon XL 1500 (5.3) that I bought a couple of years ago. The former owner had previously installed a dual electric fan, which now needs to be replaced as only one of the fans is operational and it is a single (duel fan) unit. I have crawled over and under trying to find any form of manufacturer information (label, stamp, etc) and online searches return no options for my model year (yet there is one clearly installed on my vehicle). From visual comparison, it appears the current unit is possibly a Dorman or Summit Racing, but without a known stamp or model identified, this is a mere guess so have reached out to both for recommendations or technical assistance. While waiting for their response, I thought I would roll the dice on the forums, as I'm sure I cant be the only operator of this body style / engine running a dual electric fan, so thought I would pose the question. This is my fourth vehicle of this 1st Generation body style so I am assuming the former owner used a unit for a newer model year (maybe a 2002 or 2003) being I am not finding anything for a 2001, but again.. I'm sure I am not the only one running duel fans on a 1st generation model. I would appreciate any information or recommendation from fellow owners / forum members.

 

[Tonyrodz]

Electric fans didn't start until the 05 model year, before that it was clutch fans. Post a pic of the fan, it might help some members recognize it.

 

[Fless]

Here's a pic of a 2005 OE fan, with your classic 5- and 7-blade fans. I've put rectangles around where most of the molded-in numbers will be (don't miss the numbers on the motors). There is another large 7-digit number on it but I don't recall where it is. Might be on the other side or one of the edges.

As you view the pic, "up" is up, and you're looking at the side that mates to the radiator.

 

[Jimmyy]

You may want to test each fan. Normal operation is for 1 fan to run and the 2nd to run when needed. @Tonyrodz will turning the AC on automatically kick both fans on?

 

[Fless]

You can apply 12vdc to each fan at the connector on the fan. Depending on polarity, the fan will run backwards or forwards. Not that it matters to see if it will run.

 

[Tonyrodz]

You may want to test each fan. Normal operation is for 1 fan to run and the 2nd to run when needed. @Tonyrodz will turning the AC on automatically kick both fans on?

Honestly I'm not sure, as I have the clutch fan. I've heard they should, but I'm sure @ScottyBoy would know for sure.

 

[Doubeleive]

You may want to test each fan. Normal operation is for 1 fan to run and the 2nd to run when needed. @Tonyrodz will turning the AC on automatically kick both fans on?

where did you get that information?
normal operation is LOW speed or HIGH speed, not left/right
either way OP you can replace them with any fan shroud from 04-14 they are all the same fitment and same electrical harness plug. watts will vary, blade count will vary
if the existing shroud is oem by chance you can take it apart and the part number is stamped on the side of the motor, depending on the age of the motor and environmental conditions you may have to look pretty hard for it, rust may hide it completely. A new replacement oem motor runs about $60-80

 

[ScottyBoy]

Factory fans wired to a FACTORY harness (like the ones I've sold to several members on here) are normally wired as follows: One fan run at high speed when the AC is on. The second fan comes on high. when the temp threshold is reached and the temp wire is triggered. So when the engine is at operating temp AND the AC is on, both fans will be running at high speed. If the AC is OFF and the engine reaches operating temperature, both fans come on at low speed. But it could be set up completely different if it's custom wired, or if it has an after harness or fan controller. Some aftermarket fan controllers don't connect to the ECM or the AC compressor trigger wire, they just have a temp probe that gets mounted to the radiator or a coolant hose or something.

 

[Fless]

Here's a pic of a 2005 OE fan, with your classic 5- and 7-blade fans. I've put rectangles around where most of the molded-in numbers will be (don't miss the numbers on the motors). There is another large 7-digit number on it but I don't recall where it is. Might be on the other side or one of the edges.

As you view the pic, "up" is up, and you're looking at the side that mates to the radiator.

View attachment 380393

@Sam Harris look familiar? Although I did clean them up after the pic...

 

[Sam Harris]

@Sam Harris look familiar? Although I did clean them up after the pic...

Haha!! I was gonna ask if those were my fans! Thanks again for picking them up for me. When are you doing your conversion..?

 

[Fless]

Haha!! I was gonna ask if those were my fans! Thanks again for picking them up for me. When are you doing your conversion..?

Man, I haven't been to a UPull all summer. Been too long!

 

[Sam Harris]

S

Man, I haven't been to a UPull all summer. Been too long!

Same. I haven’t even got a good wash and detail in all summer long..! Making me crazy…!! And I’m STILL waiting for my updated tune. Ugh..

 

[Doubeleive]

Factory fans wired to a FACTORY harness (like the ones I've sold to several members on here) are normally wired as follows: One fan run at high speed when the AC is on. The second fan comes on high. when the temp threshold is reached and the temp wire is triggered. So when the engine is at operating temp AND the AC is on, both fans will be running at high speed. If the AC is OFF and the engine reaches operating temperature, both fans come on at low speed. But it could be set up completely different if it's custom wired, or if it has an after harness or fan controller. Some aftermarket fan controllers don't connect to the ECM or the AC compressor trigger wire, they just have a temp probe that gets mounted to the radiator or a coolant hose or something.

maybe it's different on the nbs but on the nnbs there is only 1 relay for high and 1 relay for low, no left/right

 

[OR VietVet]

You know I replace things on my rig just for giggles. I have looked high and low for a new in stock complete electric fan assembly for my Z71 and cannot find anything except Dorman or other aftermarket crap. I can get motors and blades all day long but the whole assembly? I cannot find one. If it was available anywhere, I would buy it. @915_Tahoe, can you help a guy out? 89023365 is the OE number, right?

 

[Doubeleive]

You know I replace things on my rig just for giggles. I have looked high and low for a new in stock complete electric fan assembly for my Z71 and cannot find anything except Dorman or other aftermarket crap. I can get motors and blades all day long but the whole assembly? I cannot find one. If it was available anywhere, I would buy it. @915_Tahoe, can you help a guy out? 89023365 is the OE number, right?

the price for a whole new shroud, motors and fans as a set is crazy high, you only need to replace the motor/s unless the plastic is cracked

 

[OR VietVet]

the price for a whole new shroud, motors and fans as a set is crazy high, you only need to replace the motor/s unless the plastic is cracked

I know and agree @Doubeleive, but you know me, I like shiny new things on my rig. It has a new radiator and whatever bolts to it must be shiny too. Plus, it is easier to swap out that way and I have a friend with a 2005 Tahoe that buys all my old reusable parts.

 

[Doubeleive]

I know and agree @Doubeleive, but you know me, I like shiny new things on my rig. It has a new radiator and whatever bolts to it must be shiny too. Plus, it is easier to swap out that way and I have a friend with a 2005 Tahoe that buys all my old reusable parts.

you can find all the parts new individually

 

[OR VietVet]

you can find all the parts new individually

I did look again and found Genuine GM motors and both blades but no shroud. RA says is out of stock and will notify me and Genuine GM Parts and GM Parts Direct both show discontinued. Did you find the shroud somewhere else?

 

[mattbta]

They are activated differently on 00-02 trucks vs 03-06. Can't comment on the operation for certain but I seem to recall on 03-06 both are on for low and then high.

 

[Doubeleive]

They are activated differently on 00-02 trucks vs 03-06. Can't comment on the operation for certain but I seem to recall on 03-06 both are on for low and then high.

00-03 do not come with fans unless someone retro fits them on from a 04+, and some 04's may not have fans either the last 04 suburban we had did not have electric fans