Car idles funny only when the AC or Defrost is on
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2001 Mercury Grand Marquis Question: marquis idles funny
Answer #1G. T. Service Center (4142 Answers) , Stephenville, TX - (254) 638-3236ProfessorG April 12, 2014, 15:03Master
Clean the idle air control and throttle plate.
Replybyrnez, April 12, 2014, 15:21Rookie
ReplyProfessorG, April 12, 2014, 15:31Master
Hope that's all you need, but simple.
Replybyrnez, April 14, 2014, 05:28Rookie
What do you suggest the best way to clean parts
ReplyProfessorG, April 14, 2014, 05:43Master
Some intake or good carb cleaner.