Skip the auto shop - Our mechanics make house calls

Q: Hear engine grinding noise at idle only-park or drive. Then goes away above idle. Not AC or any pumps. What is it?

asked by on

Hear engine grinding noise at idle only-park or drive. Then goes away above idle. Not AC or any pumps. What is it?

My car has 55885 miles.
My car has an automatic transmission.

A: Hi there. In many cases, the grinding noise...

Hi there. In many cases, the grinding noise coming from an engine at idle and in park can be caused by a VVT solenoid or switch. Typically solenoid problems are caused by dirty oil, which clogs the screen that sits between the solenoid and the VVT pressure switch. If the solenoid doesn’t operate, the VVT system will remain disengaged, which can adversely impact engine performance, fuel economy and more. To be certain however, it's best to have a professional mechanic come to your home to complete an engine is making a noise inspection. This will allow them to diagnose this issue and provide an accurate repair.

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

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: Running warmer then what it should be

If you have a code that says the thermostat is opening to late, I would just replace the thermostat. Codes indicating thermostat problems are usually accurate. I would only recommend being sure the cooling system is completely full before you...

Q: Air in car not cooling

If the air is blowing, but not cold, then there may be a problem with either the blend door actuator, or the air conditioning system refrigerant levels. I would recommend having a professional technician, such as one from YourMechanic, inspect...

Q: Loud suspension, not sure if it’s broken or just bad quality

The most likely cause is that your front stabilizer bar links and bushings are worn or broken. Your struts may also have failed. A thorough inspection is needed to determine the exact cause. From your description of what happened, it...

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...
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...
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.