Mechanics

CHEVY CAN THE AC COMPRESSOR MAKE UR CAR RUN HOT

2003 Chevrolet Blazer

Engine Cooling problem
2003 Chevy Blazer 6 cyl Two Wheel Drive Automatic 120000 miles

I'm at witts end, on my truck I have changed the radiator, thermostat, 90% of the hoses and the water pump. The thing is my truck still runs hot. BUT. Only when the AC is on. It won't run hot if I drive in the 90+ degree weather but soon as I cut on the air. Temp goes up till the check engine light comes on. But there is a twist. It don't run hot at night. The temp will rise but just above the half mark. Some people told me to get the AC check. Could be low or need a ac cooler thing that's in the front of the coolant raidator, or even the compressor. Its hot in FL need help soon
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2003chevyblaze
August 21, 2010.




Does the vehicle have two fans?

Legitimate007
Aug 27, 2010.
No there is one clutch fan and its been replaced

Tiny
2003chevyblaze
Aug 27, 2010.
Have you verified that the fan comes on when you turn the a/c on? Because it is supposed to. Also you may want to check the engine coolant temperature sensor.
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Legitimate007
Aug 27, 2010.
Ill check the sensor. But the cluch fan is on a fan

Tiny
2003chevyblaze
Aug 27, 2010.

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