The Truth About Electric Fans

[99xcss4]

your fan clutch is pwm? or is it just a fan clutch which is otherwise mechanical that the PCM can choose to disengage?

@L31MaxExpress has one of these I do not know what it from hopefully he will chime in and explain it

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[Schurkey]

Looks Trailblazer-ish.

 

[L31MaxExpress]

@L31MaxExpress has one of these I do not know what it from hopefully he will chime in and explain it

You must be registered for see images attach

I use for a Trailblazer and it has the same fan bolt pattern as the Duramax 9 bladed fan and the same M30 thread as the Vortec water pump. I also have a P59 in the van that has the PCM code to run said fan clutch. Even without that coding it could still be switched on and off with a relay.

 

[Awest623]

I use for a Trailblazer and it has the same fan bolt pattern as the Duramax 9 bladed fan and the same M30 thread as the Vortec water pump. I also have a P59 in the van that has the PCM code to run said fan clutch. Even without that coding it could still be switched on and off with a relay.

Do you have part numbers for that clutch and fan? Looks like a great idea to improve A/C performance at idle.

 

[Kevmore007]

I put fans from a 2007 Avalanche in my Yukon, and they don't turn on at all when driving. Only if i idle for a while they will come on.