answersLogoWhite

0


Best Answer

When the fuel in an engine cylinder ignites prematurely or unevenly to cause power fluctuations and a "knocking" sound. usually occurs when an engine is very how or improperly timed.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is car engine knocking?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What you do when knocking sound in a car is due to engine control module complaint?

Get it fixed.


What causes a knocking noise under the hood of your car?

it could be your valves or your engine


Could that knocking noise from the engine and that smoke coming from the muffler have anything to do with the car not starting?

If you have knocking from the engine and smoke from the exhaust then you have far more problems than the car just not starting. Sick professional help immediately.


Car makes loud knocking sound at high speeds?

A loud knocking noise in the motor of a car at high speeds is most likely the engine. There could be another issue with the transmission if the knocking only happens at high speeds.


Why is there a knocking in your 305 engine in a 1988 caprice classic after you turn off the car?

== == Upgrade your gas. Use premium grade, that will eliminate the knocking.


When the car is in drive but not moving there is a rattling coming from the engine?

my car engine is on but with a loud knocking noise but when i apply some gas it does not move at all. my car is an automatic civic.


How do you fix a knocking noise coming from engine?

Cant you just ask the people at the car place?


Why does your car make a knocking sound when you drive?

Could be a rod knock. Your bearings slipping in the engine.


Knocking in the bottom of the engine?

knocking noise


If car is making a knocking noise?

possibly distributor. tow to mechanic . if you drive , you could damage your engine.


What can you do to keep your car engine from knocking?

Either get higher octane fuel, or retard the timing. That is about the only thing that will help


What causes a knocking sound after car is shut off?

The combination of fuel still being pumped into the engine and air