Q: When brake is pressed, the car shakes

asked by on June 24, 2016

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?

Car or steering wheel shakes when braking Inspection $79.99 - $89.99 Get a Quote

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.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

The four wheel drive system is not engaging the front wheels

From what you are describing it sounds like you have either a failure in the transfer case or in the front axle actuator. I usually drain the fluid from the transfer case first and check it for metal. If there...

I started having trouble getting the clutch to go into gear.

It appears that you may be experiencing signs of a worn out clutch given the year and mileage, that may likely be the case if this is the original clutch. Other components such as the clutch master and clutch slave...

Battery draining constantly.

The first thing to do is to make sure that your friend did not leave any bare wires that are touching ground and shorting out. If the wiring is ok then the problem may just be that it started to...

Pinion bearing making noise

The pinion bearing is a common issue with Ford rear ends. Most of the time, this failure is due to a differential leak that was not addressed and the bearing run dry. I recommend having a trained technician, such as...

Clanging coming from the driver front - motor mounts? 2009 Chevy Cobalt

Hi there - there are 3 {motor/transmission mounts](https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-engine-mount) for the engine and transmission - which mounted as a single unit. The rattling noise could be a number of things depending on when the car is making the noise - while...

Rattle when cold engine - 2006 Ford Mustang

Hello. This could be a variety of many things and may be difficult to pinpoint without physically inspecting the car. Many cars tend to have small or subtle vibrations and rattles as fasteners, nuts, and bolts become loose over time....

automatic transmission,will only go if i manually shift

You may have a bad shift governor in the back of the transmission. The governor will shift the transmission as you speed up. Some transmissions have a manual type and others use an electronic type. Either way, it is in...

Car not driveable

Hello, An inspection of the vehicle will have to be done. The possibility of an internal failure of the transmission has occurred. This would still need to be confirmed. If you'd like, a certified Your Mechanic technician can come to...

Sounds as if the car is not going into gear. I have RPM reading odometer, not sure what it should be reading when driving on freeway.

Hello and thank you for contacting YourMechanic. Watch the tachometer (rpm gauge) as the vehicle is in motion. When driving, you should see the tachometer go up and then go down a little when the transmission shifts gears. For 4...

Related articles

Is it Safe to Drive With a Gas Leak?
If you notice the smell of gas once you get into your vehicle, this could be a sign of a gas leak. A...
How Car Acceleration Works
Going from 0 to 60 mainly involves the throttle, engine, differential, and tires of a car. How fast it takes depends on the features of these parts.
Symptoms of a Bad or Failing Radiator Drain Cock
Common signs include leaking coolant, especially around the radiator drain cock, and threads stripping on the drain cock.