Question about 1998 Plymouth Neon

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Running hard I have a 1998 plymouth neon expresso that runs hard when the AC or defrost is on. Also recently it squeels occasionally when the AC is on but only when in park. i relaced the serpentine belt the alternator belt it has a new timing belt too. Help?

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You may need a new serpentine belt tensioner. That's the part that keeps the belts tight. If it's weak, it may be allowing the belt to slip. When you say the car runs "hard" what exactly do you mean? That the RPMs dip down when you turn on the AC? If so, that's normal since the AC compressor loads the engine pretty heavily. If you mean something else by it, please repost and clarify what you're seeing/hearing so we can take it from there.

Posted on Aug 07, 2008

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