1992 GMC C1500 Air condition quits cooling

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MCLEOD964
  • MEMBER
  • 1 POST
Air Conditioning problem
1992 GMC C1500 V8 Four Wheel Drive Automatic

The air was converted from R12 to 134A and has just not worked good since. It has had several compressors since the change over. The problem now is that the air will be running then you will feel it get warm and on the AC control panel the AC light will be flashing. If you unhook the battery it will reset the AC and the unit will start cooling again, but only for a short time before it goes out again.
May 25, 2010 at 11:55 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Hi there,

Have you had the system pressures tested and is there any codes in the ECU, when it flashes check for codes, start here.

mark (mhpautos)
May 26, 2010 at 12:00 AM
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