vehicle: 1991 Toyota Previa.
Problem: filled vehicle with 134a, AC worked fine for 2 days. Refrigerant leaked out by 3rd day.
attempted so far: inserted 134a with dye into system. Leaked out within 3 days. Visually inspected front evaporator, drier, condenser. No trace of dye. Compressor also showed no dye seepage. This vehicle does have a rear evaporator unit. I have not inspected it since it is a pain to access. would renting a sniffer help? I was under the impression they are not reliable.
what am I missing? How can I find this mysterious leak? Thanks for the input.
Problem: filled vehicle with 134a, AC worked fine for 2 days. Refrigerant leaked out by 3rd day.
attempted so far: inserted 134a with dye into system. Leaked out within 3 days. Visually inspected front evaporator, drier, condenser. No trace of dye. Compressor also showed no dye seepage. This vehicle does have a rear evaporator unit. I have not inspected it since it is a pain to access. would renting a sniffer help? I was under the impression they are not reliable.
what am I missing? How can I find this mysterious leak? Thanks for the input.