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1992 GMC Safari Repair Question


Topics covered: Condenser, Accumulator, Evaporator.
Mileage: 140,000 miles.

Asked on May 20, 2011

Freon

I have a 1992 gmc safari with r 12 system. The condenser had to be changed(a hole) but now how do i get it filled? I put 134 in it and it rattled so I had it taken out. Can you advise me seeing how I'm an older than this van ( at least no payment) ?
Avatar Asked by Rwardwell

Answer

Replied on May 20, 2011

You must use R12 finding it will be a problem. Alternative is to use a drop in ecuivalent to R12. Or convert to R134 which would be expensive

Tiny Answered by Docfixit (expert)
18,430 answers provided
Replied on May 20, 2011

The big deal with retrofitting is you have to get the old oil out of the system. you can remove the compressor to empty it, replace the accumulator and flush the evaporator. The condenser can be flushed if it is the serpentine type but if it is the bypass type, it will have to be removed and dumped out. Then you just have to change the fittings, add different oil and recharge it at 80% of original charge.

Tiny Answered by Wrenchtech (expert)
14,734 answers provided
Replied on May 20, 2011

What kind of oil should we put in it?

Tiny Response from Rwardwell
1 question asked

Replied on May 20, 2011

PAG

Tiny Answered by Wrenchtech (expert)
14,734 answers provided
Replied on May 20, 2011

What about "hot shot"?

Tiny Response from Rwardwell
1 question asked
Replied on May 20, 2011

It's snake oil garbage and it's not approved for use in these systems.

Tiny Answered by Wrenchtech (expert)
14,734 answers provided