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2 Posts
Hello all,
I can't get my AC compressor in my 04 to turn on at any fan speed setting. It only turns on when I manually short circuit it - so I know the compressor/clutch is still engaging and in good shape. With the compressor jumped on, the freon is at normal operating levels. Thinking it has something to do with a sensor telling the compressor it doesn't need to be on. I went ahead and changed the Thermo Control Amplifier that's under the glove box that's inserted into the Evaporator - no luck there. I've checked the AC relay and all related fuses and those are good. I was wondering if anyone has any information on the A/C pressure switches and their locations? It seems there are 2 sensors connected to the high and low lines near the condenser on the right & front side of the engine (between the air filter and the driver side headlight). I tested the sensor on the high pressure line using a voltmeter and didn't get anything, so I'm thinking that sensor may have failed. This is the only "AC Switch" I've been able to locate locally (https://www.autozone.com/cooling-he...switch/santech-a-c-switch/580035_481679_17387), and it doesn't really look like the high pressure sensor I tested. I'm thinking that after my last freon recharge I overcharged the system and it caused one of these pressure sensors to fail - I heard some whining noises for a short time after the recharge.
Any info on this situation would be greatly appreciated! Thanks!
I can't get my AC compressor in my 04 to turn on at any fan speed setting. It only turns on when I manually short circuit it - so I know the compressor/clutch is still engaging and in good shape. With the compressor jumped on, the freon is at normal operating levels. Thinking it has something to do with a sensor telling the compressor it doesn't need to be on. I went ahead and changed the Thermo Control Amplifier that's under the glove box that's inserted into the Evaporator - no luck there. I've checked the AC relay and all related fuses and those are good. I was wondering if anyone has any information on the A/C pressure switches and their locations? It seems there are 2 sensors connected to the high and low lines near the condenser on the right & front side of the engine (between the air filter and the driver side headlight). I tested the sensor on the high pressure line using a voltmeter and didn't get anything, so I'm thinking that sensor may have failed. This is the only "AC Switch" I've been able to locate locally (https://www.autozone.com/cooling-he...switch/santech-a-c-switch/580035_481679_17387), and it doesn't really look like the high pressure sensor I tested. I'm thinking that after my last freon recharge I overcharged the system and it caused one of these pressure sensors to fail - I heard some whining noises for a short time after the recharge.
Any info on this situation would be greatly appreciated! Thanks!
