Skip the auto shop - Our mechanics make house calls

Q: What is making my engine knock?

asked by on

Every time I start up my 2010 Chevrolet Silverado, there is a knock in the engine. The truck is only at 15,000 miles! I am very concerned, as the truck is very new and hasn’t missed an oil change or any scheduled maintenance. I need to fix this problem right away. Is this a common problem or is this truck a lemon?

The noise you are hearing is from the lack of lubrication of components inside your engine during initial start-up. The noise goes away as soon as oil gets to the components, however, every time the noise is heard there is engine wear and metal to metal contact. Have a certified mechanic from YourMechanic make sure you are using the proper oil filter for your engine. The original filter design has a check valve built inside it that holds oil after shut down, and prevents the oil from draining back into the oil pan. When you start up in morning the stored oil gets to bearings quickly and limits the starvation of oil on start-up in the morning. If you are using an oil filter that is not an approved design, then you can cause engine damage by starving the bearings on start up. You can then have YourMechanic check your oil pressure during start up for possible internal engine leaking of bearings or components. My recommendation would be to have YourMechanic service your truck by using full synthetic oil and a factory authorized filter and do an oil pressure check on your truck.

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: Does the remote start feature turn on the whole car or just the engine?

The remote start function acts very much like the regular ignition. A couple of things happen when the vehicle is started remotely: The parking lights will turn on while the engine is running. If the vehicle had the heater...

Q: Okay so I was in a race but when we started the race I pressed the tow/haul button.

Hello. I am not too sure about the question you are asking. From what you've described, it sounds like you used the tow/haul button when you raced your truck and ever since the engine is making noise. If this is...

Q: How do I shift between 4WD and 2WD?

It’s easy to shift between four-wheel drive (4WD) and two-wheel drive (2WD) in your car. Here’s how. Slow your vehicle to a crawl (preferably 1-3 mph). Shift your transmission into neutral. Turn the transfer control case (the shifter...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.