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Ac compressor making noise when starting to accelerate

  • Whooptydoo
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3 years 4 months ago #56517 by Whooptydoo
Ac compressor making noise when starting to accelerate was created by Whooptydoo
I have a 1992 Isuzu trooper model s with a 3.2l sohc . I replaced the ac compressor and flushed the system , changed expansion valve. Drained compressor of oil and refilled with 1.5 oz of new oil. Installed compressor. Pumped system down to 29 inches of vacuum and held overnight. Added 3.5 oz of oil to system and added 18 oz of Freon to system . Every once and. While when take a corner I believe the compressor squeals for a bout 30 seconds then goes quiet. Replaced ac belt. Any help on why the compressor is squealing at times?

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