Skip the auto shop - Our mechanics make house calls

Q: knocking noise at shifting gears vvt damage would that make a nosie

asked by on

knocking noise at shifting gears vvt damage would that make a nosie

My car has 132000 miles.
My car has a manual transmission.

A: Unfortunately, it is not possible to know w...

Unfortunately, it is not possible to know what the noise is without hearing it in person. VVT damage would most likely cause a rattling noise in the valve train. It could become louder between shifts, but the shifting of gears isn’t the issue you should be worried about.

If there is indeed a problem with the VVT, this should be repaired ASAP. You could be starving the head of oil that will cause major damage. The solenoid that actuates this system has plastic guides that can fall apart sending lots of debris into the motor. In addition to this, you could have valve interference with the pistons causing even more damage.

If the VVT is the problem, it will make a rattling noise on start up. Often it will continue after start up.

Transmission problems can have excessive clearance between the gears that will can make noise in between shifts as well. The trans will need to be rebuilt, but it won’t cause any other problems. To have this diagnosed, a certified professional, such as one from YourMechanic, can come to your car’s location to inspect the knocking noise and let you know what needs to be done.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: P0014 Code, Replaced both camshaft actuators

You will need to have the vehicle scanned with a scanner that is capable of actuating the solenoids and monitor data at the same time. The actuators when actuated at 1200 rpms should cause the rpm to change up and...

Q: Steering wheel makes clanking noise

I would not delay an inspection of your car, judging by the variety of noises it is making. A worn axle or “halfshaft” can click when going around corners. A worn wheel bearing gets louder with speed. I would have...

Q: Power Steering Pump replacement

Hi, thanks for your question. I'd be happy to help. There a couple of different model power steering pumps available for your Audi A4. One model has what is called a "ZF Pump" and the other has what is called...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.