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You need to be more specific in your question. What year/make/model and engine size/configuration do you have? If you dont know this then just take it in. Does it knock at idle? Hard acceloration? Decceloration? Only when cold? Only when hot? Info like this is very valuable when trying to diagnose a problem, but i would first look at your rotating assembly. (aka crankshaft, rods, and pistons) One or more bearing may have excessive clearance, the wrist pins may be scored, etc. The easiest way too look at it is to take off the oil pan and visually inspect everything.
What else can I help you with?
Knocking in the bottom of the engine?
knocking noise
Dodge caravan 3.3l engine knocking very hard?
engine knocking hard,and shaking a bit
There is a knocking noise in the motor of my 1992 town and country. Could this be the transmission going?
NO. A knocking noise in the engine is a problem in the engine.
Why is my 2003 cavalier engine knocking?
Engine knocking can be caused by numerous things. Having the incorrect spark plugs, carbon deposits on the cylinder walls, and being low on engine oil may all cause a knocking sound.
How long can v8 engine last while knocking?
if your engine is knocking that means you need oil. go get an oil change or add a quart asap or the engine will burn out
How do you repair A 1997 Chevy s10 blazer that starts but makes a loud knocking sound and engine shakes and proceeds to turn off?
if the engine is knocking really loud you probably need to overhaul the entire engine or get a new or used engine because loud knocking is not good
What is the difference between detonation and knocking in ic engine?
Detonation involves a supersonic exothermic. Knocking in a engine is spark-ignition internal combustion.
What is car engine knocking?
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.
What is making the engine knocking when driving?
your foot
What does it mean when your engine has a knocking noise?
When your engine has a knocking noise, it could mean that a rod has been thrown. It could also mean you are low on oil.
What causes knocking in a Ford Windstar engine?
Knocking is usually associated with worn main and rod bearings.
Pre ignition in an engine may be detected by?
Pre-ignition in an engine may be detected by engine knocking.
