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?

A: The noise you are hearing is from the lack ...

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: AC acting up in my truck

The most common problems with the blower working erratically or not at all on the Chevrolet Silverado, is caused by the blower resistor module mounted in the A/C evaporator blower housing in right side of dash. It gets moisture in...

Q: Car loses power uphill, makes clanking sound - 1995 Chevrolet Corsica

Hey there. You don't mention the conditions under which the "clank" occurs - while accelerating, cornering, braking, etc., but I would have a professional mechanic like YourMechanic check out your vehicle. Loss of power could be a clogged catalytic converter,...

Q: How do I adjust the cargo cleats?

The cargo cleats assist you in safely loading your truck bed. When you have a large load in the bed of your truck, you can use the cleats to fasten items down. There are four cleats in your vehicle. two...

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...
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...
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...