Car idles funny only when the AC or Defrost is on
Mercury Q&AAsk Your Question
2001 Mercury Grand Marquis Question: marquis idles funny
Answer #1G. T. Service Center (4243 Answers) , Stephenville, TX - (254) 638-3236ProfessorG April 12, 2014, 18:03Master
Clean the idle air control and throttle plate.
Replybyrnez, April 12, 2014, 18:21Rookie
ReplyProfessorG, April 12, 2014, 18:31Master
Hope that's all you need, but simple.
Replybyrnez, April 14, 2014, 08:28Rookie
What do you suggest the best way to clean parts
ReplyProfessorG, April 14, 2014, 08:43Master
Some intake or good carb cleaner.