97 bonneville SE

-No compressor clutch engagement
-12 volts at connector on compressor
-Replaced compressor clutch
-Swapped the first two relay'* on pass. side ( horn and AC) no difference.

How much pressure on low side when clutch not engaged?
Can you manually jump the compressor?
How do I know/test the coil for engaging the clutch?

Thanks in advance,
Chapster

If you apply 12 dircetly to the clutch connector, it should engage if it'* functional.

Most common reason for the clutch not engaging is low refrigerant.

How do you determine if you are low in refrigerant if the compressor is not cycled on to get a reading on low side? What is the pressure on low side when not engaged?

I jumped the clutch by running connector at compressor to the battery. No engagement of the clutch was present.

Help.

When was the clutch replaced and has it worked since it was replaced? If it was working, you would have heard it click when you jumped it. It makes a loud click.

That is the problem is that I have never witnessed the clutch engage thus no click. It is as if there is week magnetism from the coil of the compressor.

Clutch replaced a couple of weeks ago.

I saw this thread had hoped to revive it. The triangle on the front of the compressor is the clutch? Right? What I am experiencing and the triangle is not turning. I noticed that when I pulled the connector out and plugged it back in, it would start again. When it is running, the air is cold. Which makes me wonder if it is low on refigerant. What should I do?

The triangle is the face of the clutch and a good indicator as to if the clutch is engaging. By staying still..you know the clutch isn't engaging.

In your case, I would have the refridgerant level checked as you mention. Most likely it is slightly too low for the system to engage.

Thanks Bill. I will put in a can this weekend.