2002 GMC Sierra Service ports

Tiny
LRDOTY406
  • MEMBER
  • 2002 GMC SIERRA
  • V8
  • 2WD
  • AUTOMATIC
  • 70,000 MILES
I cannot locate the high pressure service port on my 2002 Sierra p.U. I want to put on the guages to check pressures. Please tell me where it is located. Thank you.
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Thursday, June 24th, 2010 AT 10:10 AM

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Tiny
FACTORYJACK
  • EXPERT
I would have thought it would be easier than it is, I can't find an illustration that shows it. I am even looking in GM service info. Where is the low side, I would guess on or near the accumulator. What I would recommend is you trace the discharge line from the compressor, to the condenser, and from the condenser to the evaporator. It should be within that area.
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Thursday, June 24th, 2010 AT 11:23 PM

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