Why Does My Car Idle High in Park?

Answer

Your car may idle high in park because you have a faulty spark plug. If the problem persists, consult a mechanic.
Q&A Related to "Why Does My Car Idle High in Park?"
Automobiles use vacuums to adjust and control various engine components. A leak in a vacuum hose will cause a loss of vacuum power that might result in a high idle. Check vacuum hoses
http://www.ehow.com/facts_7657746_car-idle-high-pa...
either the throttle position sensor (TPS) or a vaccum leak.
http://wiki.answers.com/Q/What_causes_a_car_to_idl...
A car idle high could mean a vacuum leek, onboard computer needs
http://www.chacha.com/question/why-would-a-car-idl...
Throttle return spring might be getting weak. What I have always done on mine is just add a helper spring. I never use cruise control Only time cruise control is used on my cars or
http://answers.yahoo.com/question/index?qid=200904...
1 Additional Answer
Ask.com Answer for: why does my car idle high in park
Why Does My Car Idle High in Park?
A high idle when a vehicle is in park is not only annoying, but it is also a sign of a problem in the engine. Finding and repairing the problem likely will improve fuel efficiency and provide better engine performance.... More »
Difficulty: Easy
Source: www.ehow.com
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