Air conditioning not working?

195,000 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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KLSHIEL
  • ✓Experienced Mechanic
  • 163 POSTS
I believe your system is R-12 to be sure look at the fittings in the system. R-12 fittings are small and treaded like bike tire air fittings. R-134a fittings are short stubby quick disconnect fittings. Only a qualified shop can do anything if it is a low R-12 problem. Something other than how full it is can cause your trouble. with motor running look at the AC compresser. if the clutch is engaging suspect low pressure or a clog in system.
Jan 11, 2021 at 1:29 AM (Merged)
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