Skip the auto shop - Our mechanics make house calls

Q: Knocks upon starting and won't drive.

asked by on

When I start my car it makes a knocking noise and I can't drive it. The gear stick does not shift out of park on my automatic transmission.

A: Your shifter has a solenoid that will not l...

Your shifter has a solenoid that will not let the shifter come out of park unless your foot is firmly on the brake pedal. This is a safety feature to prevent cars from rolling away if the brake pedal is not depressed. If this solenoid, or another part of the park interlock system has failed, the shifter may not come out of park. Concerning your knocking noise I would check the level of your engine oil if you are able. Low oil can cause your engine to knock due to low oil pressure. I would ask for an inspection from a mechanic to check into both of your concerns so your vehicle will be 100 percent again.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Hi im looking into a used infiniti, the owner gave me the description below, how much would all of the cost me and is it worth it?

Hello, thank you for writing in. It is nearly impossible to tell what kind of costs you are looking at with this old of a vehicle. 220,000 miles is a lot, but it sounds as if the car was maintained...

Q: My vehicle display says my car isn't in park when I go to start it ,HELP!!

It sounds like you may have a faulty shift cable for the transmission. It may have a bad connection bushing where it connects to the transmission linkage. You should have the cable inspected to see if it is bad and...

Q: What would cause an engine mount to shear off?

Hello, motor mounts have a big job to perform. Think of a motor mount as the cushion insole of your shoes, and how the shoes feel after 3 months of continuous use. The motor mount is piece of rubber that...

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...
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...