Q: Q: Car shakes when in idle.

asked by on

I believe the lower control arm needs replacing. The car shakes when it is idling, the RPMs rev up when my foot is on the brake, and it feels like it wants to take off. My car also has a leak.

Hi there. With this many issues you really need to enlist the assistance of a certified mechanic, like one from YourMechanic, that has the knowledge and tools to do this. If you have a bad control arm it will typically cause knocking or creaking in the suspension when going over bumps. As for the shaking and the engine revving with your foot on the brake that is usually caused by a vacuum leak. It may be a bad vacuum hose on the engine, a leaking intake manifold, or brake vacuum booster. If it has a fluid leak, this can come from anywhere depending on which fluid it is. If you prefer not to do this I would get the assistance of a certified mechanic, like one from YourMechanic.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Car shakes when in idle.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Truck has occasional putter but not a misfire when giving it gas at an idle. 3 years without driving. Bad fuel mix or spark plugs?

Depending on storage conditions, ethanol content, and so forth, fuel will expire in 2 to 6 months. If fuel has sat in a tank for 6 months, and the car has not been used during that period, there is no...

Q: Hesitation occasional misfire and poor mpg

The MAF is a possibility. I think it is also possible that one or more injectors are clogged or malfunctioning as the symptoms you describe sound like that of a fuel system issue. I would recommend having the fuel injectors...

Q: Key won't turn in the ignition - 2002 Ford Focus

Typically when the steering wheel locks up it will still feel springy in one direction. You will want to simultaneously turn the key in the ignition and turn the steering wheel in the direction that feels spongy. Now addressing the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...