Electric fan for Condenser?

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RichMoss

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Question is there alot of OBSs in Abu Dhabi and how in the world did you find one out there ? Lol
If the picture loads up ok, here it is rescuing a Mitsubishi Pajero in the desert. The Tahoe is great off-road - plenty of power (5.7L Vortec), small lift (about 2") and a perfect length wheelbase (in my opinion). It acquits itself very well indeed.

Apologies to the OP for the thread hijack
 

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L31MaxExpress

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In the later years 400/ obs GM installed the aux fan to improve condenser effectiveness, with AC on, or activated by high temp switch in head rt. Head.
GM put out a TSB on the earlier GMT800s to retrofit the GMT400 fan to them as well for poor ac cooling at idle. An electric pusher on the condenser is a common user add on for the Express vans too for all year models of them. It definitely helps at idle and slower speeds.

Some of the later square body trucks and SUVs had a pusher from GM as well, it was nothing new by the time GM decided to add them to the GMT400s.
 

SNCTMPL

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Which fan are you guys using?

Edit: Nevermind, I just found a Genuine GM on GMpartsGiant for under $80 shipped.
 
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GoToGuy

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My 86 K3500 dually had a heavy duty tow option. And an extra transmission cooler with it's own fan. Later when going through the B&M catalog I think I know where GM sourced the cooler.
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L31MaxExpress

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My 86 K3500 dually had a heavy duty tow option. And an extra transmission cooler with it's own fan. Later when going through the B&M catalog I think I know where GM sourced the cooler.
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B&M does not make those coolers. They buy them from the same manufacturer that makes the True Cool M7B like I have.
 

df2x4

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B&M does not make those coolers. They buy them from the same manufacturer that makes the True Cool M7B like I have.

Long Manufacturing if I recall correctly...

The TruCool M7B on my red truck has the Long logo stamped into one edge just like the factory AUX cooler on my Suburban.
 

Georgiabigfoot

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In the later years 400/ obs GM installed the aux fan to improve condenser effectiveness, with AC on, or activated by high temp switch in head rt. Head.
Hello, any idea what year model of gmt400 gm began offering a condenser fan ? My 96 burb doesn’t have one, but I plan to add one. However, I’d like to get another gmt400 and preferably with the factory e fan. Thanks
 

GoToGuy

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What's an " e fan" ,? The electric fan mounted in front of condenser is called an "Auxillary Fan " , or Aux Fan. If say " aux fan" , your talking about that fan. It has a standard name. Don't use slang terms, it's too confusing, and you want to be understood.
You can get them at a treasure yard or buy new ones. Then decide how you want it to function. Manual control. Engine temp controlled. Switched on with AC switched on. Or a combination of controls.
 
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