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Old 06-20-2009, 02:48 PM   #8 (permalink)
mack1
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Join Date: Nov 2007
Location: Texarkana, Texas
Posts: 1,245
OS: xp sp3

My System

Re: 98 Malibu overheating

Hi fjalvarez,

I have a haynes repair manual that covers your year. There is only one electrical print that shows the fan circuits. It is not listed as "typical", so I assume it is for all of them.

On that print, it shows two fans controled by relays and no means to provide speed control. The PCM controls both fans and I can only assume that it brings the second fan on when the AC is on or an overtemperature condition exists. It might be that only one of your fans works and it could be the one used for overtemperature. (again, I'm guessing about when the 2nd fan is switched on) The book didn't explain the sequence.

I can post a picture of the print if you like. It might let you trouble shoot it if you don't have both fans working.

Quote:
the fans dont stay on with the car in motion and the temp stay with in spects
This says there is a problem with the fan/fans.

What engine do you have in the car?

Best regards,
Mack1
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