View Single Post
Old 05-14-2003, 08:50 PM
Duke2.6 Duke2.6 is offline
Registered User
Join Date: Mar 2003
Location: Southern California
Posts: 2,011
Could be your refrigerant level is low.

The following simple test is in the 1984 Maintenance Manual section 8312, and is typical of all cars with AC systems.

- Start engine and run at idle speed.

- Depress button switch "DEF" [This will engage the compressor.]

- Check fluid level as follows: Pull off one electrical lead on low-pressure switch [Either of the insulated spade terminals.], electromagnetic clutch should then switch-off and refrigerant should flow back into the receiver-dehydrator.

- Reattach electric lead, electromagnetic clutch should now switch-on again and refrigerant should flow free of bubbles past the sight glass.

- In the event of foam or bubbles, there is not enough refrigerant in the system.

The receiver-dryer sight glass is located in the engine room just behind the LH headlight assembly, and the low pressure switch with two insulated spade terminals is right next to it.


Reply With Quote