Ford Mustang Forum - View Single Post - 2000 Mustang 3.8L RPMS stick when heat is on
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post #4 of (permalink) Old 02-07-2011
robb15033
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Joined: May 2010
Location: Leesburg, Va
Posts: 408
 
Just a FYI- My Mustang started doing the same thing this winter. When I turn the heat on (defrost+floor OR defrost) rpms raise as though the ac compressor comes on. I have not investigated it further yet but I will get an answer asap and look for your posted solution.

'97 3.8 Pacific Green
Modified~
1996 SVT COBRA
White
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