Engine Size: 5.0L
Refrigerant Type: 134a
Ambient Temp: 90
Pressure Low: 28
Pressure High: 190
Country of Origin: United States
I converted over this truck last year and because of a compressor failure, I replaced everything except for the evaporator. The system cooled great and still does. However the truck only gets driven about 5 times a year (to the local home depot). The other day I got it back and it was extremely low on freon. Upon doing an extensive leak check (including inside the cab) I found the compressor shaft seal leaking with the system shut off. After driving the truck around and reservicing it (using a recycle machine), it seemed to stop. After letting it sit sit over night it still has no leaks. This is probably due to the seal getting lubricated and resealing. My question is, is this normal? I hate to change the compressor just to have it happen again.
I suggest you run the A/C at least once a month to keep the seals oiled. Just good maintenance and if it is not leaking now, don't mess with it.
Thanks Tim, I feel the same way.
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