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Discussion Starter · #1 · (Edited)
During my 517 mile round trip yesterday my A/C was continually acting up. It would work and then quit working. As I was going 70 to 75 mph in heavy freeway traffic I had no way of knowing if my A/C clutch was engaged when it quit working.

As the clutch is energized by a 3-terminal #6273301 AC Delco relay and mine is the original relay I decided to order a new one and see if that cures the problem. At $65 it wasn't cheap but as my present relay is 51 years old I felt it would be best to replace it just because of its 51 year age and the thousands of times it has been used.


The advertisement says it's an "anti dieseling" relay but in my 71 it energizes my A/C clutch. As my fast idle solenoid is wired to my clutch the moment I shut it OFF the solenoid's plunger retracts.
 
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