Why do my RPM's fluctuate betwen 600 to 1100 when I run my defroster or A/C?

25

Asked by Feb 06, 2014 at 08:56 AM about the 2000 Ford Mustang GT Convertible

Question type: Maintenance & Repair

1 Answer

Not sure on the defroster but the a/c takes power when it calls for cold air and the clutch engages. This could cause the idle to go down in rpm and work the opposite when it disengages.

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