Skip the auto shop - Our mechanics make house calls

Q: When brake is pressed, the car shakes

asked by on

When I am stopped at a red light and the brake is pressed, the car starts shaking badly. You can feel the vibrations throughout the whole car. I’ve checked and the rotors are not warped. Recently my brakes were replaced. This past week when I would start my car or press on the accelerator, a blue smoke would come out of the tail pipe. There is an exhaust leak and at times (but not always) the gas fumes are very strong. A friend who works at a muffler repair shop told me that he has seen many cars like mine that have this same exhaust problem. What advice can you give me to get my car into good shape?

Hello! If your engine is emitting blue smoke from the exhaust the problem will probably be some form of internal engine damage or wear. More than likely it will be worn valve guides or piston rings.

Both of which will cause oil to leak into the combustion chamber and produce blue smoke from the exhaust. To determine if these may be the problem I suggest having a technician perform a compression test and a leak down test on the engine.

A certified mechanic can assist you with performing these tests in order to pinpoint the shaking that you’re experiencing. Please keep in mind that YourMechanic can provide such technicians and perform the diagnostic at your home or office per customer request.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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. When brake is pressed, the car shakes

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: I have a 2008 Chevy Cobalt and will be replacing both CV Axle Shafts. Do I have to get an alignment after?

In short no you do not as long as the lower ball joint is taken loose and not the strut bolts. If you loosen the strut bolts then you will need an alignment.

Q: Won't shift into 3rd gear and bogs down after 2005 Chevy Blazer

This sounds like you may have internal transmission issues on your 2005 Chevrolet Blazer. It could be caused by low transmission fluid, a faulty shift valve, or possibly burned clutches. Smell the transmission fluid. If it smells burnt, then you...

Q: Car shudders and hesitates when accelerating from a stop

This may be related to a few different things, such as low fuel pressure or a bad mass air flow sensor. Low fuel pressure may cause the car to shudder if it is starving for fuel when trying to accelerate....

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 Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...