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Car Shaking Problems
Ford Escape XLS
Ford Explorer XLS

Why does your car shake during idle and acceleration?

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Wiki User
2009-08-01 08:10:40
2009-08-01 08:10:40

could be the engine mounts. could because of early detonation, which could be caused by overheating. it also could be a rod knock, which is more likely if it keeps shaking during acceleration and higher rpm's.

first thing to check would be if its too hot, watch the temp guage, and make sure it doesnt get too high.

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If a car shakes during acceleration the brake rotors may be damaged. If the rotors are damaged they will be unstable as the tires rotates making the whole car shake.

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The car will idle rough and hesitate during acceleration.

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The pistons are running in the cylinders of the engine, so when the rpm of the engine rises, the pistons quickley build up speed. It is this rapid acceleration of the pistons that casue the car to shake.

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Check the idle, crankshaft and camshaft sensors.

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When the TPS sensor is disconnected from the car in idle, there would be delayed acceleration.

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Check the Mass Airflow Sensor (MAF Sensor). Either it is dirty or damaged.

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might have misaligned or loose wheels

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try using zmax i had the same thing on a car i had and it worked for me

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If your car shakes while accelerating check your motor mounts. Then check your transmission.

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what does idle funny mean? Does the whole car shake? (upper engine mount collapsed) Or does the engine shake/misfire? (Intake manifold gasket)

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Can be many things. If the car is over 10 years old suspect a vacuum leak.

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The car will act like it has a power loss during acceleration. It may also miss from time to time. It may also not want to idle and can die during idle.

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Yes they can. It can also be a vacuum leak, or defective idle control valve.

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Cylinder misfire. Possibly failed or failing engine mounts.

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Engine miss or rough idle, or broken motor mount

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take it to a garage there may be something wrong with the fuel delivery system.

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its probably just your idle kicking in when u stop, this keeps your car ideling at a certain RPM so your car dont stall, and die.

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If a 2001 Cadillac DeVille shakes when the car is idle, there could be an issue with the powertrain. There could also be a problem with the crankshaft position sensor.

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Your idle air control valve should not affect your acceleration. As soon as you step on the gas , the idle part of your engine should not be operating. If your car cuts out or stumbles, i would suspect a problem with the TPS ( throttle position sensor.)

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Yes. A disconnected vacuum line will cause the engine not to idle at a constant rpm, therefore causing the car to shake.

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tourque coverter. u can usually bypass the tc by unplugin it however u will not have over drive if u do.had the same prob on a lumina..

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Assuming this is a front wheel drive vehicle, a CV joint in one of the halfshafts is going bad.


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