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by LarryP
Sun Feb 17, 2019 2:34 pm
Forum: Automotive Air Conditioning Procedures, Tips and FAQ.
Topic: 134A R4 conversion seal failure?
Replies: 1
Views: 4730

134A R4 conversion seal failure?

I put a used R4 that was most likely from an R12 system on a 93 Chevy truck Flushed the compressor and system changed the orifice tube and accumulator, added the pag oil evacuated and charged. It worked great for maybe two months, then overnight was barely cooling. Added a can or 134 and it was cool...

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