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...
It's usually a vacuum leak.
http://wiki.answers.com/Q/Why_does_your_car_idle_v...
More than likely the problem is the electronic control unit, but yo...
http://www.chacha.com/question/when-my-car-is-at-a...
It sounds like your accelerator cable, between the gas pedal and throttle may be sticking...or it could be the pedal itself bound up a little. Either way, it could get worse, so have
http://answers.yahoo.com/question/index?qid=200702...
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
Explore this Topic
A car will boost to a higher revolution in park if the idle is set improperly or there is a leak. This will also happen if the idle becomes stuck or the oxygen ...
A high or fast idle is when the idle doesn't come down after the car has been running for a while. In a car with a carburetor, the high idle can be caused by something ...
There are many reasons a car idles fast, but one common reason is a vacuum leak. Older muscle cars have only two or three vacuum hoses, making finding the leak ...
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