I'm hoping that someone can help me diagnose what appears to be a faulty expansion valve in a 1990 Volvo 240.
The car was converted over to r-134a about 8 years ago and worked great until it developed a hole in the condenser. I replaced the condenser as well as the drier and vacuumed the system down for an hour and then verified that it held vacuum for a couple of hours. I added the recommended 2.2 lbs. of r-134a and got the gauge readings in the photo.
The inlet line to the expansion valve is getting frosty while the outlet of the evaporator is staying at near-ambient temperatures. It was 90° in the shop today.
From everything that I've read, it sounds like the expansion valve isn't allowing refrigerant to enter the evaporator at the correct rate.
Any advice would be appreciated.
Thanks very much.
The car was converted over to r-134a about 8 years ago and worked great until it developed a hole in the condenser. I replaced the condenser as well as the drier and vacuumed the system down for an hour and then verified that it held vacuum for a couple of hours. I added the recommended 2.2 lbs. of r-134a and got the gauge readings in the photo.
The inlet line to the expansion valve is getting frosty while the outlet of the evaporator is staying at near-ambient temperatures. It was 90° in the shop today.
From everything that I've read, it sounds like the expansion valve isn't allowing refrigerant to enter the evaporator at the correct rate.
Any advice would be appreciated.
Thanks very much.
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