Why Does My Car Idle Rough at a Stop?

Answer

Your car may idle rough at a stop because there is an issue with your engine. It could mean you need new spark plugs, have a blown seal or a leak. If your car runs rough each time you stop, it is a good idea to take it to a mechanic.
Q&A Related to "Why Does My Car Idle Rough at a Stop?"
A loose or broken vacuum hose causes rough idling, and is the easiest repair of all. This is a very common problem since hoses wear out over time. Look in your engine compartment,
http://www.ehow.com/list_6107077_causes-rough-idli...
This could be an air lock in the system. Affecting the coolant temprature transmitter, a lack of water where the sensor is located will cause incorrect data being sent to the vehicles
http://wiki.answers.com/Q/What_causes_Car_to_idle_...
The engine will either race or run real slow and backfire, with lots of air
http://www.chacha.com/question/what-are-symptoms-o...
Age and model the problem is likely the throttle body needs a good cleaning. Need one can of throttle body cleaner, a toothbrush, and some clean rags. Spray the throttle body and
http://answers.yahoo.com/question/index?qid=201009...
1 Additional Answer
Cars idle roughly when at a stop due to factors such as bad plugs, wires, bowl seals and cracked head. The problem can be fixed by a regular oil change and a tune up consisting of change spark plugs and wires.
Explore this Topic
There are a variety of problems that can cause a car's idle to be rough. A rough idle is usually defined by the car idling below its normal speed, loping RPMs, ...
Your car may idle high in park because you have a faulty spark plug. If the problem persists, consult a mechanic. ...
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