I have a 2001 ZX2 and the A/C quit blowing cold. I am not getting any power to the compressor, and both pressure switches have checked out OK.

Are there any relays in this line?

Any help will be greatly appreciated.

Have you checked the A/C system pressure?

Yes, the pressure is OK.

The compressor won't engage unless low side pressure is about 55 psi. If that isn't the problem, it's a matter of tracking down where the power is being interrupted, whether it's a fuse, pressure switch, relay, etc. The first step is to locate a wiring diagram and go from there.

The AC problem is due the failure of a small relay inside the CCRM (Constant Control Relay Module). This little module is mounted in the engine compartment underneath the air filter housing. The CCRM relay failure on 98+ Escorts/ZX2s is well documented by thousands of people (like me) who have the same or similar AC problems. With my ZX2 the AC operation was intermittent - sometimes working, sometimes not. You can either have the CCRM replaced (about $200 for the part), or you can attempt to repair your CCRM. I can supply more info if you wish. Email me for more info.

Paul
paul78zephyr@verizon.net

When I turn the AC to Max or just regular setting, and the temp knob is set to cold, i don't get cold air. I noticed that the AC compressor clutch does not engage. From what I have read on the web, one person replaced the CCRM and this fixed his problem. Appearently, the CCRM ($150.00) controls the signal going to the clutch magnet that causes the compressor to run. But i'm not 100% sure if this is the same problem that I'm having.

I will check the pressure switches to make sure that they are working properly. I don't want to spend over $350.00 worth of parts (reman. AC compressor, accumulator/receiver-drier, orifice tube/thermal expansion valve, couple cans of R134a refrigerant, and some other misc. parts like o-rings), so first I will check out the electrical side of the system.

If any one has any ideas... please let me know. Thanks in advance.