Q: Loud knocking from engine area

asked by on

The vehicle has a loud knocking sound coming from the engine area.

Loud knocking sounds from the engine are often a sign of catastrophic failure, but not in every case. Inspect the engine oil level, and look for metallic flakes floating within the oil. Worn or broken parts along the engines belt drive system can also cause very loud noises in the engine bay. Have a trained mechanic inspect the engine compartment and verify which component is causing the noise.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Loud knocking from engine area

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: My oil pressure light comes on when driving

The Check Engine Light may have come on for another reason and may not be related. You should have it scanned and diagnosed. As for the Oil Pressure Light, you may have a blockage in the oil pump screen and...

Q: Steering becomes slack while making turns in either direction.

Hello. Thank you for writing in. There are several components that may cause the steering to be loose or jerky. The first thing to do is check the power steering fluid color and level. Make sure its clean and topped...

Q: Station wagon sputters and hesitates

It will depend on the the fault that is stored causing the service engine soon light to be illuminated. Based on the description, I would suspect either an input sensor to the engine management system, such as an oxygen sensor,...

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...
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...
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...