Contour Enthusiasts Group Archives Forums General Troubleshooting A/C Trouble - Please help......

Hello everybody, hopefully someone will know what's going on. I have a 98 Contour SE, 2.5 Duratec. The a/c blows warm air, never cold. I notice that the compressor isn't running continually, it tries to start, but shuts off immediately after. I can feel the relay clicking on and then immediately off. Is there a problem with the compressor, or possibly the relay? Your insights would be greatly appreciated.

Thanks,
Dave

chances are there is a leak in the system that has let all the coolant out, this causes the low pressure switch to activate and cut out the compressor, get a guage set from autozone and check the pressure out

may just need to be refilled or you have a major leak

I have checked the pressure and it reads OK, my friend and I added some refrigerant, and it held it.....

Welcome . Maybe compressor clutch.
Read this thread.
http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=1248984&Forum=trouble&Words=a%2Fc%20blow%20air&Match=And&Searchpage=0&Limit=25&Old=allposts&Main=1248984&Search=true#Post1248984

Sorry for the lack of info....with the engine running and the air on high, it initially read 25 psi and we added till it read ~40 psi.

Try measuring pressure with the car off and not warmed up. The low side pressure (port near batery) should be above 80psi, drops to about 25-30 when the system is running and the compressor is on. Check the accumulator canister it may have rusted out. My compressor leaked at the case O ring, soap bubbles can help you find a leak.

A minimum of 45 psi (static) is required to close the cycling switch and turn on the compressor clutch.

Steve

Those pressures are awfully low...

Bob