Fans nada

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Jan 27, 2010 | 09:55 PM

huckleberrydude

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Joined: Oct 2003

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From: springfield missouri

Fans nada

relay clicking but no electric radiator fans. Its dark and cold so I didn't look very far.

I'm guessing the motor blew up or the wires got against something hot.
I planned on running a jumper to the fan and if it works, work my way backwards to the relay.

Any common problems or suggestions would be appreciated.

The car is an 07 with a procharger and my own plumbing and radiator mount etc.

Thanks.

Jan 27, 2010 | 11:35 PM

huckleberrydude

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From: springfield missouri

going to bed bump

thanks

Jan 28, 2010 | 12:12 AM

PowerLabs

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Joined: Oct 2007

Posts: 6,149

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From: Greater Detroit Metro MI, when I'm not travelling.

Quote:

Originally Posted by huckleberrydude

There is no relay; the fans are controlled by a small unit called a pulse width modulator which can vary their speed dynamically depending on engine temp and load.

That PWM unit on my car died. I found out by commanding it to come on, and when it didn't I jumped it and the fans came on; that told me the PWM unit was at fault. They are cheap to replace and can be accessed by jacking up the passenger front.

Jan 28, 2010 | 08:41 PM

huckleberrydude

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From: springfield missouri

thanks. Even with all my mods, chevy is going to fix it for free.

Jan 28, 2010 | 09:29 PM

BADZ

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From: Lone Star State

I had to just replace mine as well, it's the fan module..

Jan 28, 2010 | 10:14 PM

huckleberrydude

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From: springfield missouri

Quote:

Originally Posted by BADZ

I had to just replace mine as well, it's the fan module..

I told them that was the problem. I was more than happy to fix it myself. I made the call. They know my car and the blower etc. Fixing it for free.
until June 13

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