Q: Q: Loud knocking noise.

asked by on

My truck is making a loud knocking noise.

When you say a knocking noise I assume you are referring to the engine. If the engine is indeed making the sound the first thing I would recommend is to check your oil level. This can be done by pulling the oil dipstick (usually indicated by a yellow top) and looking at the amount of oil on the stick. If unsure which dipstick is designated for engine oil this information can be found in your owners manual. If the engine oil is low I would recommend adding oil until the level is correct as soon as possible to prevent further engine damage. After adding oil, if the noise goes away the engine should be ok. If the noise does not go away permanent engine damage has occurred. This doesn’t mean the engine will not still perform its intended purpose but the noise may never go away. If the noise is a big concern of yours then replacement of some valve train parts may be necessary. Have your engine noise inspected by a professional.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Loud knocking noise.

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: I have oil and water mixing in the engin but there is no oil in on the plugs.

No. There is only 1 common possibility for this engine to get water into the oil, and that is a blown head gasket. This often, but not always, follows an overheating event, and some times also occurs with vehicle mileage...

Q: Stalling when gas pedal pressed down quickly or too fast also happening when stopping at lights and sometimes during idle.

Hey there. It sounds like you may have a mass air sensor problem or an intake leak between the throttle body and mass air sensor. This is a perfect example of why you should have a mechanic conduct a pre-purchase...

Q: Car makes knocking and clunking sound

If you are hearing a suspension noise, any number of components when worn can cause a noise. A bad strut or strut mount, ball joint, sway bar, or one of many bushings. To find the noise, the suspension would need...

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...
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...
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...