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

Tiny
INDIANOUTLAW73
  • MEMBER
  • 1993 CHEVROLET CHEYENNE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 255,900 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 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 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
  • MECHANIC
  • 5,121 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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