Overheat problem

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Jun 9, 2005 | 01:03 PM

Fun4All

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From: Houston

Overheat problem

My car overheats after a few hours of driving when I use my AC, even on the lowest level. After a while my temperature gauge will start climbing and I have to turn off my AC for it to go back down to the halfway mark. Does anyone else have this problem? I have a 2000 LS1.

Jun 9, 2005 | 02:07 PM

Saad06

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From: houston

hmm... that makes no sence. when the AC is on, the AC fan is on, and it helps cool the engine a little more.. im stumpted.

Jun 9, 2005 | 02:17 PM

JackZ28

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From: NW Houston

Make sure your fan is coming on when the A/c is on.

Jun 9, 2005 | 03:30 PM

Saad06

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From: houston

Quote:

Originally Posted by JackZ28

Make sure your fan is coming on when the A/c is on.

duh, i feal stupid.

Jun 9, 2005 | 06:08 PM

Seth

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From: Clear Lake, TX

I'm having the same problem. I'm sure its a fan problem.

Are these fans 2-speed? Because I think mine are both running.

I haven't had time to really investigate yet.

Jun 9, 2005 | 08:26 PM

ACW

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From: Beaumont, TX

Quote:

Originally Posted by Seth

I'm having the same problem. I'm sure its a fan problem.

Are these fans 2-speed? Because I think mine are both running.

I haven't had time to really investigate yet.

Yes, there is a low speed and a high speed.

The fans are controlled by three relays to select the mode.

The PCM will turn low speed fan operation ON at 108°C (226°F) and OFF at 103°C (217°F), and high speed ON at 113°C (235°F) and OFF at 108°C (226°F).

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