AC Clutch No Power
Thread Starter
Advanced
Joined: Sep 2014
Posts: 71
Likes: 3
AC Clutch No Power
Freon in.
AC Relay is New.
In the Picture at the end of the screwdriver, No power is getting to whatever this is.
Thought it might be a Bad Relay, not it.
Any thoughts?
Air Blows just Not Cold.
AC Relay is New.
In the Picture at the end of the screwdriver, No power is getting to whatever this is.
Thought it might be a Bad Relay, not it.
Any thoughts?
Air Blows just Not Cold.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
That's the low pressure switch. It prevents the compressor clutch from engaging if the system is low on freon. You can force it to engage by removing the connector and jumping across the pins in the connector. You can do this test with the engine not running (probably best). There is a fuse associated with the compressor clutch. On earlier years it's labeled "A/C". I don't know what it is on later models (after 1990 when the fuse setup was changed).
Instructor
Joined: Nov 2012
Posts: 214
Likes: 8
From: Long Island
Just had this same problem this morning. No freon in the system (long story) . While adding it, the compressor wouldn't cycle on. Did some research and found a post saying to disconnect the battery for a minute and reconnect. I was skeptical but it worked. Cycled on and off until the freon was within range. A/C is ice cold.
