1993 CHEVY CHEYENNE R-12 TO R-134A CONVERSION

  • Tiny
  • indianoutlaw73
  • 1993 Chevrolet Cheyenne

Air Conditioning problem
1993 Chevy Cheyenne 6 cyl Two Wheel Drive Automatic 255900 miles

I am wanting to up grade my a/c unit but I have the old r-12 a/c unit. Do I need to buy a new compressor, condenser, and accumulator for the conversion or can they just suck out my old r-12 and replace with r-134a without buying new parts

Monday, April 21st, 2008 AT 10:04 PM

2 Answers

  • Tiny
  • mhpautos
  • Expert
  • 29,839 posts

Hi there,

You will need to remove the compressor and replace the oil to one suited to the new refrigerant. Replace the receiver dryer and two new pressure hose couplings will be required.

Mark (mhpautos)

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Tuesday, April 22nd, 2008 AT 5:38 AM
  • Tiny
  • legitimate007
  • Expert
  • 5,227 posts

Are you having any problems with your current r12? If not I would leave it in my opinion r12 is a lot colder

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Saturday, April 26th, 2008 AT 1:01 PM

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