1997 / AC clutch sometimes works but not always

Asked by Apr 29, 2014 at 11:51 AM about the 1997 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

when working car cools just fine when not no cool /  automatic themostat system

3 Answers

23,765

Your AC system is designed to run the clutch as long as needed and then shut off. The idea is to prevent icing of the Evaporator. In hot weather - 90 F and above, it should almost never cycle. Below 80 F, it should cycle on and off regularly. If it cycles quickly and/or isn't cooling off, have the system checked for leaks and recharged.

1 out of 1 people think this is helpful.

Thanks Tracy...it seems to work in the A/c manual mode but not the automatic or max a/c mode...strange beast

10

I have same make n model. Behaving the same way. I was told it was something that wasnt opening up when it should. Needing a fix. Summer is soon!

1 out of 1 people think this is helpful.

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