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Truck overheating when AC is on.

  

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2005 GMC Canyon 4×4 ,Z71-Sle 3.5l ,5sp. My truck is overheating when I turn the AC on and was idling.  The AC blower is working but is not blowing cold air. Any advice? Thanks Pat


2 Answers
5

Check that your radiator and condenser fans are working.


2

Could be that the 17 year old compressor with worn out bearings is loading the engine down causing the overheating.  But like @chucktobias said, check the fan(s).


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