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The thermostat is failing.

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Q: What would cause car temperature to rise when stopped but drop when moving or when engine is revved?
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How do you know if your catylic converter is stopped up in 87 cadillac deville?

No power, shhhh sound from ehaust pipe when engine is revved up


Why does the Engine shakes when revved?

An automobile engine usually shakes when it is being revved due the crank rotation. When revved in neutral, a torque is produced due to the reaction of the motor.


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