Contour Enthusiasts Group Archives Forums General Troubleshooting A/C Cut-off

Just replaced my condensor/dryer/orifice and recharged the system. It blows super cold now. The a/c tech expected the system to cycle during idle in about 80 deg F ambient temps. It was not cycling. Clutch stayed engaged. For good measure I replaced both the A/C cycle switch (low side) and the cut-out switch (high side) but still no cycling during idle.

Anybody know if the system should have been cycling at this point? (I think there is a table in the service manual, but I don't have mine with me). What factors go into a/c cut-out? I thought it was just high side A/C system pressure.

The clutch engages/disengages when operated by the switch. I am a bit reluctant to run the system more to see if cycling occurs as I don't want to overpressurize the system and but undue stress on the compressor.

Anybody know what voltage I should see on the cut-out switch harness pins?

Try it in the morning when its cooler 65 degrees, it will cycle then. If it doesn't you may have an issue. I want mine to work like that, trying right now to get it to hold the R134 . It might cycle if you rev up the engine to 2000 rpm. If the whole car is hot in the sun, it might not cycle.