My Ford Contour had this problem. Most of it went away by changing the throttle position sensor. It also had poor acceleration & this also cured most of that. Big tomato
plugs or vacuum. 65;
Bad o2 or maf sensor
Yes. A disconnected vacuum line will cause the engine not to idle at a constant rpm, therefore causing the car to shake.
Is the car running ok? If yes and its only the vibration that's an issue most likely cause is motor mount(s)
this car is known to have an appearance of a rough idle even when everything is fine and a history of short-lived motor mounts
Idle air control actuator is probably bad.
The engine of a Chevy Trailblazer may begin shaking when idle if there is insufficient fuel reaching it. This can be caused by a clogged fuel filter or dirty fuel injectors.
Assuming the car is shaking at idle in drive, the engine is either in need of a tuneup or you may have a loose or broken motor mount.
This will depend upon the type of car you have, the type of shaking and what is causing the shaking. The solution may be anything from tightening a bolt to stop driving the car because it is dangerous.
One symptom of a bad time chaining is a shaking when the engine is in idle. The valves in the engine may also clatter or knock and the car could also backfire.
Is it a 4 cylinder? Sometimes a 4 cylinder engine will shake a little extra when the AC is running and it's at an idle. You might be able to step up the idle a little extra but 4 cylinder engines are notorious for shaking when the AC is running.
Why is my car shaking after I hit a bump in the street?? Espeically when I put my foot on the breaks.