Question about 1999 GMC Yukon
Posted by Anonymous on
Is the compressor engaging and did it engage before adding freon?
What is the pressure on the gauge for the low side? 25psi to 45 psi is normal when the engine is running and the compressor is turning.
If the compressor is not turning the pressure should read 75psi to 100psi, before the compressor starts turning.
Also, the radiator fan should go on when you engage the air conditioning by turning it up to max.
Posted on Jul 16, 2010
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Posted on Jan 02, 2017
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