Automotive Air Conditioning Information Forum

Servicing a VIR assembly is not difficult.

Remove it from the car. Clean it before you open it. Service kit will have the O rings and the desicant bag.



Its the removal from the car that is proving difficult-the VIR unit has a huge nut that just doesn't move and there is a 2nd nut behind it ...

As far as you know, was the system cooling acceptably up to the apparent loss of refrigerant and catastrophic compressor failure?


Yes it was, I never experienced cooling with R-12 so can't make a direct comparison.
Thermal fuse was barely a year old

I've read the dessicant bag inside the VIR ...

Hi all
Car is a 1976 Cadillac with the old Valve in receiver assembly that has run well for many years on R134 with no issues.

Last year it needed recharging I thought ok fine, its been 12 years between recharges. Then barely a year later, it stopped blowing as cold but compressor still turned ...