Q: Loud noise from under valve cover

asked by on

There is a loud rattling, knocking noise coming from underneath the left valve cover.

With this symptom, you will likely need to check your oil level. If the oil level is okay, you may have internal engine problems, which need to be inspected further. If you would like to have this inspected, a certified mechanic from YourMechanic can come to your home or office to diagnose the rattling noise and make the necessary repairs.

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. Loud noise from under valve cover

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: Car jerking and dying.

Hi. Your car is equipped with a torque converter clutch that allows the converter to lock to the speed of the flywheel which increases fuel efficiency. This is only to occur at highway speeds when the vehicle is cruising. The...

Q: Q: Passenger's side window not going up or down.

Hi. All of the power windows are supplied power via the same fuse so if all the other windows windows operate, then the problem lies in the right front door. The door panel will need to be removed to diagnose...

Q: valve body swap from a 5R44E to a 4R44E.

Yes you can swap out the valve bodies as they will bolt right up, however, the computer will need to be replaced for the transmission controller as it is programmed for a 5 speed and not a 4 speed. The...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.