
If your vehicle has idling issues that cause unusual vibrations or a sluggish feeling, otherwise known as rough idling, consider it a cry for help from your car. Rough idling is often what causes a car to vibrate. Additionally, a well-functioning engine is able to produce the power needed to operate vital systems such as the cooling system, power steering, air conditioner, and the electrical system.

Why Does My Car Vibrate When Idling?Įngines that operate well and idle smoothly indicate that the fuel and air provided to the engine are mixing at the optimal condition. When a vehicle’s RPMs fall below or are increasingly higher than normal, especially if the car vibrates when idle, something is not right. A vehicle that is operating normally should measure at about 1,000. Because of its vast speed, the gauge displays the counts as multiples of 1,000. While idle, the engine will complete about 10 revolutions or more per second.

It’s the RPM gauge, also known as the tachometer, that measures the rate of revolutions per minute produced by the engine. There’s another gauge on the dashboard that few of us notice, however, it’s there for a good reason. It tells you when fuel is low, the speed you’re traveling, and even reminds you to put on your seatbelt. Your vehicle’s dashboard is how your car communicates to you.
