A/C inop and fans not working... Please read

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#26

05-24-2011 | 12:23 PM

Cadenza

5th Gear

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From: Poggibonsi

Quote:

Originally Posted by turbostang52

Thanks Cadenza, I will definitely check out the pressure sensor as well.

I may end up replacing the compressor but just want to be sure it's not something else (like the pressure sensor) that isn't allowing the a/c compressor to kick on.

The pressure sensor feeds a signal to the ECM. If there's not enough pressure or the sensor is stuck open, the ECM will not activate the AC relay.

You could remove the wiring harness from the pressure sensor and jump the wires. This fools the ECM into thinking there's enough pressure and activates the AC relay when the AC switch is turned ON. (Technicians have done this to intermittently activate the AC so they can recharged the system.)

BTW, there's no schrader valve at the pressure sensor. Remove it if you know for certain it's faulty.

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