Hey all,
Im working on getting our 72 satellite Sebring plus to have AC again.
Originally it had it until the PO removed everything. I bought a donor car for the brackets, hoses, evaporator, condenser and compressor.
Flushed everything out, got new green seals, dryer and bulb type expansion valve.
Compressor had a spun piston bearing.
Got a rebuilt compressor off evil bay and had to send it back due to the shaft seal leaked.
Rebuilt the heater box while in there.
Took the EPR valve out of the compressor.
I put PAG 100 oil with UV dye in the compressor fill port.
Put everything together, pulled a vacuum and the next day, it was still holding.
Pulled vacuum again for about three hours before introducing R134a into the low side.
With the engine running, AC set to max, started filling the low side system and saw the clutch pull in. So the pressure switch works.
Added a total of 42 ounces or 2.6 pounds. As I was filling I noticed the low side pressure get to around 40 and high pressure around 275. It was around 50 deg F outside, if that matters.
Here‘s the issue I’m having.
No cold air.
The low side pressure drops to zero and the high side goes up to 285 or more Only when the compressor is on.
When the compressor is off, the low side pressure slowly builds up to 40 again.
I’ve bypassed the heater lines to be sure no hot water going into heater.
I’ve cycled the compressor off/on manually to prevent frosting of the evaporator.
The expansion valve “bulb” is inserted into the low side sheath and line has insulation on it.
The dryer does not have a sight glass.
My gut feeling is it needs more Freon but, I’ve already put a lot in it.
Anybody have some insight to this issue described?
Thanks for your time and answers in advance.
Im working on getting our 72 satellite Sebring plus to have AC again.
Originally it had it until the PO removed everything. I bought a donor car for the brackets, hoses, evaporator, condenser and compressor.
Flushed everything out, got new green seals, dryer and bulb type expansion valve.
Compressor had a spun piston bearing.
Got a rebuilt compressor off evil bay and had to send it back due to the shaft seal leaked.
Rebuilt the heater box while in there.
Took the EPR valve out of the compressor.
I put PAG 100 oil with UV dye in the compressor fill port.
Put everything together, pulled a vacuum and the next day, it was still holding.
Pulled vacuum again for about three hours before introducing R134a into the low side.
With the engine running, AC set to max, started filling the low side system and saw the clutch pull in. So the pressure switch works.
Added a total of 42 ounces or 2.6 pounds. As I was filling I noticed the low side pressure get to around 40 and high pressure around 275. It was around 50 deg F outside, if that matters.
Here‘s the issue I’m having.
No cold air.
The low side pressure drops to zero and the high side goes up to 285 or more Only when the compressor is on.
When the compressor is off, the low side pressure slowly builds up to 40 again.
I’ve bypassed the heater lines to be sure no hot water going into heater.
I’ve cycled the compressor off/on manually to prevent frosting of the evaporator.
The expansion valve “bulb” is inserted into the low side sheath and line has insulation on it.
The dryer does not have a sight glass.
My gut feeling is it needs more Freon but, I’ve already put a lot in it.
Anybody have some insight to this issue described?
Thanks for your time and answers in advance.