Re: 2001 Taurus 3.0L A/C problem
Okay, I dug up my 2001 Taurus/Sable Shop manual to find out the operating parameters. The A/C clutch gets power from the A/C clutch relay, which is operated by the PCM. You said there is voltage at the Clutch connector. But you did not mention about checking the other side of the circuit, the ground circuit. The clutch is grounded at all times. So with an ohmmeter hooked to the negative post of the battery and the ground wire pin in the clutch connector, you should see below 5 Ohms. If you don't than you found the problem. To further confirm this get a good thicker gauge test lead (not the cheapy thin kind that will melt, as this is a high current circuit.) and clip one end to the negative battery post, and back probe the ground wire at the clutch connector. If the clutch works, you deffinitevly diagnosed a bad ground wire. A note- Look closely at where the wire enters the connector. I have seen many clutch connectors with a broken wire right where it goes into the connector. This is ussually caused by the wires being tie strapped to tight to the engine or subframe. The rocking of the engine evenually causes the wire to break internally first. the insulation looks fine of may be slightly faded at the break. If you can pull the wire apart with light pressure than you found the problem. If this is the problem, get a new clutch connector and make sure the wires aren't tied as tight as the factory did it. Hope this helps.