2002 GMC Sierra Airconditioning

Tiny
COACH89
  • MEMBER
  • 2002 GMC SIERRA
  • 6.0L
  • V8
  • 4WD
  • AUTOMATIC
  • 119,000 MILES
I checked the pressure of my refrigerant and the gauge indicated too high. Will this cause my AC to not cool sufficiently?
Saturday, August 8th, 2015 AT 3:57 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Yes.
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Saturday, August 8th, 2015 AT 6:01 PM
Tiny
COACH89
  • MEMBER
  • 1 POST
Should I have some of the refrigerant taken out of the system, or should I take it all out and replace it with the proper amount?
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Saturday, August 8th, 2015 AT 8:33 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Since we really don't know how much is in the system, it should be evacuated (vacuumed out) and then refilled with the proper amount. Can you tell me the pressure you saw on both the high and low sides?
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Sunday, August 9th, 2015 AT 7:34 PM

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