Skip the auto shop - Our mechanics make house calls

Q: 02 trailblazer vibrates when accelerating

asked by on

had a vibration when accelerating. Had mechanic look at it. Motor mount bracket had broken. Had it replaced but the vibration was still there. Had dealership to look at it and they said it was the exhaust converter. So had it replaced, still have vibration when you accelerate. Could it be the exhaust manifold? But there is not a loud sound other then when you accelerate in the beginning and then it stops and it vibrates the steering wheel. You can feel it. Confused

My car has 237000 miles.
My car has an automatic transmission.

A: Hi there. The problem with most shaking and...

Hi there. The problem with most shaking and vibration issues is that one damaged component like broken motor mounts can mask other parts that may be damaged. A cracked exhaust manifold is one of those that can cause the vibration and noises you're hearing on your Trailblazer. Before you decide to take your vehicle to the dealership, it might be a good idea to have a local professional mechanic complete a vehicle is making noise inspection; to determine if other components might be damaged as well.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car electronics went out

Thank you for your question. The stuck key issue is relatively straightforward and thus can be resolved if you request a stuck key diagnostic. Whenever an electrical system or component will not shut down, or starts without a command as...

Q: Car shakes when idling

I know these vehicle symptoms all too well. If your GMC Yukon runs better after it has warmed up then it is likely that it is experiencing a vacuum leak in the intake manifold gaskets. It is not uncommon for...

Q: Reverse gear causes wobbling and shaking - 1966 Chevrolet C20

Sounds like something is loose or disconnected back there still: trailing arm bolts, panhard rod bolts? Are the shocks bolted up? Are the "blocks" you mention allowing the axle housing to rotate (under torque), relative to the trailing arms? ...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...