Bad bearing? Bad connecting rod?
There could be a problem with low old causes the pistons to rattle. There could also be a problem with the rocker arm.
Have vehicle scanned to determine the problem
NO. A knocking noise in the engine is a problem in the engine.
The engine on your 04 5.3L Chevy Tahoe could be knocking until it warmed up because of a bad fuel-air mixture. . The wrong oil could also be a cause.
my 1995 BMW 325i is making a knocking noise after i replace the water pump
Depends on the sound of the knock. Could be main bearings or rod bearings.
Your rear tire could be making a knocking sound for a number of reasons. You could have a damaged strut or axle that needs replacing.?æ
Could be a worn CV joint
Could also be the harmonic balancer. When they go bad they make a knocking noise when the engine is idling. If it has a rod or main bearing going bad it would NOT affect the way it runs so you could have a serious problem in the motor itself. If the rod or main is going out it will not run long like that. SORRY TO BE THE ONE TO TELL YOU THIS. Ray
possibly distributor. tow to mechanic . if you drive , you could damage your engine.
A knocking noise in the front wheels can be a very serious problem. The knocking noise could be caused by bad ball joints. Bad ball joints can slip off the tie rods and cause the wheel assembly to collapse. This problem should be looked at as soon as possible.
Stop using the vehicle immediately. The oil pump is probably going bad, it could also be a timing chain issue as it drives the pump.