1985-1998 [Subscribe to Daily Digest] |
I have been following this problem because I have the same symptoms on 96 9k. The A/C cycles ON and OFF every 5 to 15 seconds when engine and components are warm. The cycling was longer when I first started engine. It actually stayed running for a minute or longer at first. Lo Pressure in system is good. The clutch adjustment is right. The cabin sensor is clean and the fan with it is working. The A/C Pressure Relay can be removed or swapped with the relay next to it with no change in the ON/OFF cycling. In LO setting the A/C runs continuously with no cycling so the main A/C Relay is good. I only see one yellow wire going to the compressor and this has a connector on it a few inches from the clutch. I will look into this with test light tomorrow. Where is the anti-frost switch and is this bypassed in LO setting but used in other temp settings?
posted by 141.157.18...
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