1993 Chevy Cheyenne r-12 to r-134a conversion

1993 CHEVROLET CHEYENNE
255,900 MILES • 6 CYL • 2WD • AUTOMATIC
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INDIANOUTLAW73
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  • 2 POSTS
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
Apr 21, 2008 at 10:04 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
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)
Apr 22, 2008 at 5:38 AM
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LEGITIMATE007
  • ✓ASE Certified Mechanic
  • 5,121 POSTS
  • ASE Certified Mechanic
are you having any problems with your current r12? if not I would leave it in my opinion r12 is a lot colder
Apr 26, 2008 at 1:01 PM
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