Skip the auto shop - Our mechanics make house calls

Q: Knocking noise from lower end of the motor. I was told it could be the flywheel

asked by on

Knocking from the lower end of the motor. I have a video and was told it could be a flywheel
My car has an automatic transmission.

A: Hi there: Damage to the flywheel on a 2007...

Hi there:

Damage to the flywheel on a 2007 Chevrolet Trailblazer is highly unlikely unless you're experiencing serious transmission, acceleration or shifting issues. In most cases, a knocking sound will be caused by internal engine components that are experiencing lack of lubrication or by driveline axle components that might be warped or damaged. To be certain, and eliminate the guess work, you should have a professional mechanic complete an engine is making a noise inspection.

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: Truck not starting - 2002 Chevrolet Trailblazer

Hi there, thanks for writing in about your 1992 Dodge Spirit. A slow cranking motor can definitely impede a motor from starting. First thing you need to do is connect a battery charger and get the cranking speed up. As...

Q: Chattering noise

A stethoscope and a visual inspection is in order to narrow down the source of the noise. The noise may sound like it is coming from one place, but may be traveling through the engine block. A diagnostic inspection of...

Q: My shifter cable bushing broke can you fix this with out changing the cable?

As long as the shift cable end is not damaged and can hold a new bushing then a new bushing can be installed. Most models have an aftermarket bushing on the market. The dealer in most cases do not make...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...