2003 GMC Sierra Air Conditioning

2003 GMC SIERRA
85,000 MILES • V8 • 4WD • AUTOMATIC
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DUDE1
  • MEMBER
  • 3 POSTS
I anyone can help that would be great. I try to run my a/c and it works for a little but then turn it self it is a automatic climite contril. I jump up the low pussure switch and nothing. So check the relay under the hood and its good. But when I jumped out the relay the compresor turns on. So I rplaced the relay thinking it was weak and still no cool air all the time. You can e-mail me at mrtrout@verizon.net

Its hot and I need some releaf.

thankyou
Jerry
Jul 13, 2008 at 7:02 AM
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2CARPRO JACK
  • ✓ASE Certified Mechanic
  • 11,533 POSTS
  • ASE Certified Mechanic
With a/c problems the first thing you need to do is verify that the system pressures are enough for it to work properly
Jul 13, 2008 at 8:00 AM
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