2003 Chevy Blazer can the AC compressor make ur car run hot

Tiny
2003CHEVYBLAZE
  • MEMBER
  • 2003 CHEVROLET BLAZER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 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
Saturday, August 21st, 2010 AT 6:08 PM

4 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Does the vehicle have two fans?
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Friday, August 27th, 2010 AT 9:53 AM
Tiny
2003CHEVYBLAZE
  • MEMBER
  • 3 POSTS
No there is one clutch fan and its been replaced
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Friday, August 27th, 2010 AT 10:34 AM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
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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Friday, August 27th, 2010 AT 12:36 PM
Tiny
2003CHEVYBLAZE
  • MEMBER
  • 3 POSTS
Ill check the sensor. But the cluch fan is on a fan
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Friday, August 27th, 2010 AT 12:57 PM

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