Q: Check engine light. Motor knock

asked by on

I suspect the VVT solenoid is bad. The check engine light comes on. Can a defective VVT solenoid cause a knocking sound from the engine

My car has 225000 miles.
My car has an automatic transmission.

Hi there:

If the VVT solenoid is sending false data to the ECU, it will illuminate the check engine light after an error code is created. In order to determine what is causing the engine knocking noise, you’ll need to have a professional mobile mechanic complete a check engine light inspection. Once they download the codes, they can determine if the VVT solenoid is the source of your engine noise issue and needs to be replaced.

Was this answer helpful?
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. Check engine light. Motor knock

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: Should I still drive my car with a bad timing belt

In your application, which is referred to as an "interference engine", once it known that the timing belt is defective in any respect, it is recommended that you do not operate the engine at all until the belt is replaced....

Q: Recently, shifter has started to get stiff when trying to change gears. It's normally smooth, what are the possible problems?

Hi there. Under most circumstances, a new clutch is typically adjusted after an initial break in period, so it's quite possible that your stiff shifting issue is due to a minor clutch adjustment. It's also common for professional mechanics to...

Q: How does call waiting work with the HandsFreeLink system?

Call waiting is pretty standard on cell phones today, and the HandsFreeLink® (HFL) system is designed to work with it. When you receive a notification that there’s another incoming call, you just need to do the following: Press the...

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.