gismofx
NAXJA Forum User
- Location
- South Florida
Hey Guys,
I'm troubleshooting my A/C and have read quite a few threads on it and I'm just looking for clarification.
I've got a 2000 XJ Sport with a 4.0.
Anyway, My symptoms are quite similar to some other threads... When I turn the car on, the AC blows cold. After a little while, say 10-15 minutes and the car the warmed up, the clutch disengages and it blows warm air. It seems to stay that way until I shut the car and come back once the engine has cooled down a bit.
So, I hooked up some gauges and when the clutch is running when I first start the engine I get: (Note: I jumpered the "Low pressure clutch cycling switch" or low pressure sensor that attached to to the Accumulator )
Ambient temp appx 70-75deg F 88% Humidity.
Case 1: Start up/Warming up before clutch disengages. No Jumper // Electric FAN OFF
LP: 30 psi
HP: 260 psi
-----------
Case 2: Clutch Disengages and I pull the Low Pressure Sensor and Jump the Connector - Clutch Engages(Yay!) // Electric FAN ON
LP: 22 psi
HP: 190psi
-----------
Case 3: Jumper Wire Still Implemented and Clutch Engaged: Electric FAN OFF
LP: 30 psi
HP: 280 psi
I would think this eliminates the "compressor shim fix" as my clutch still engages. I just want some community feedback on the pressures I'm measuring and wanted to to know what you all think. According to the FSM, the HP is a little on the high side ish, but maybe not...it's pretty humid here.
Is the sensor bad? Is there a part number/ Best place to buy it from? Accumulator bad Any other things to look at?? Overcharged System? Anything else to try before evacuating and recharging?
Thanks in advance!
I'm troubleshooting my A/C and have read quite a few threads on it and I'm just looking for clarification.
I've got a 2000 XJ Sport with a 4.0.
Anyway, My symptoms are quite similar to some other threads... When I turn the car on, the AC blows cold. After a little while, say 10-15 minutes and the car the warmed up, the clutch disengages and it blows warm air. It seems to stay that way until I shut the car and come back once the engine has cooled down a bit.
So, I hooked up some gauges and when the clutch is running when I first start the engine I get: (Note: I jumpered the "Low pressure clutch cycling switch" or low pressure sensor that attached to to the Accumulator )
Ambient temp appx 70-75deg F 88% Humidity.
Case 1: Start up/Warming up before clutch disengages. No Jumper // Electric FAN OFF
LP: 30 psi
HP: 260 psi
-----------
Case 2: Clutch Disengages and I pull the Low Pressure Sensor and Jump the Connector - Clutch Engages(Yay!) // Electric FAN ON
LP: 22 psi
HP: 190psi
-----------
Case 3: Jumper Wire Still Implemented and Clutch Engaged: Electric FAN OFF
LP: 30 psi
HP: 280 psi
I would think this eliminates the "compressor shim fix" as my clutch still engages. I just want some community feedback on the pressures I'm measuring and wanted to to know what you all think. According to the FSM, the HP is a little on the high side ish, but maybe not...it's pretty humid here.
Is the sensor bad? Is there a part number/ Best place to buy it from? Accumulator bad Any other things to look at?? Overcharged System? Anything else to try before evacuating and recharging?
Thanks in advance!