Most likely is con-rod bearings. If it is, they will gradually get worse. It is best to change them before they fail altogether. Take the car to a reputable mechanic for an opinion first. Not being able to hear it I may be wrong, could be tappets needing adjustment. However,experience tells me out of adjustment tappets tap noisily, it is worn bearings that knock. or you could just be low on oil
NO. A knocking noise in the engine is a problem in the engine.
Internal knocking inside the engine is almost always a sign of worn bearings. Crankshsft, or rod bearing would be my guess. The fix, if it is internal, is overhaul. Before opening it up, make sure the knocking is indeed coming from inside the engine.
It may need oil? Or motor needs rebuilt.
The thing that could cause a knocking noise in your car is the same thing that could cause it in all cars A rod that or a flat lifter. it all really depends on where the knock is if its higher and to the back of the motor, it could be a motor mount
yes you can rebuild a knocking motor. its best to rebuild it from block up and it may get pricy but its worth it
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.
because its either cold and not warmed up or you lifters are knocking but the would be a louder knocking sound
Either your mechanic does not speak English or does not know what is wrong.
PULL YOU DIP STICK IS THERE ANY OIL SHOWING ? IF ITS TICKING AND KNOCKING YOU MAY HAVE BLOWN THE MOTOR .. GOOD LUCK
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.
There are a number of reasons why an engine would knock when you idle the vehicle. It could be your motor mounts. You may also need oil.
You will have to replace it. The bearings are worn out in the blower motor.