Skip the auto shop - Our mechanics make house calls

Q: Engine knocks as a result of a valve problem

asked by on

While driving onto the freeway, the valves started knocking severely and very loudly. I regularly change my oil with top quality engine oil. I visited a couple of auto-repair shops and both places stated that the engine needs to be replaced. They both said that the valves are worn out; plus, they heard a sound in the bottom of the engine. This information seems unbelievable to me. Please tell me what to do.

A: Your engine is a 3.5 liter not a 3.2. The d...

Your engine is a 3.5 liter not a 3.2. The dealer may have a limited service campaign for an oil line to the variable valve that can starve the valves for oil and cause a leak. This was a limited dealer campaign and your vehicle may or may not be covered, but a dealer can check to see if your vehicle is covered for the repairs.

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: car not starting errors

The fault codes need to be read out of the various vehicle control modules to determine the scope of issues that need to be corrected. Faulty sensor inputs can lead to a series of malfunctions, some of which could compromise...

Q: Car acts like I hit the brakes when I first hit gas

Hi there. This can be caused by a number of things, but the most common is a sensor issue. Most of the time this is caused by an issue with the throttle position sensor or the throttle body itself. If...

Q: When SUV is off, in gear & exited, it starts rolling

Hi there. If it is still on gear then it is going to roll. The only gear that you can put the vehicle in and it will not roll would be in park. This is the only gear that locks...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.