We need you to answer this question!
If you know the answer to this question, please register to join our limited beta program and start the conversation right now!
Asked in Fuel and Engines, Car Stalling Problems
Why would an engine suddenly knock very loud and then stall out?
A loud knock is usually associated with a rod bearing. The rod connects the crankshaft to the piston. If a rod bearing went out, possibly from an oil pump going bad, it would stall out the motor. ...
What is a bearing knock?
A bearing knock, or a rod knock develops when the bearings between the rod and crankshaft wear, leaving a gap, allowing the crankshaft to slap the connecting rod. The knock develops slow for a few miles but once the rod starts to knock then the gap increases because the metal in the rod and the crankshaft get destroyed and deteriorated. As the gap increases the knock gets worse, and as the gap increases the knock and the damage will rapidly get...
Asked in Subaru Impreza
What could cause a 1995 Subaru Impreza to knock when it is first started for a second and then seem fine it almost sounds like its coming from up in the head area and not a rod knock?
Fine it almost sounds like its coming from up in the head area and not a rod knock? OMG ...
How do you fix rod knock?
The reason for rod knock is there is play where the connecting rod Jonie's piston. Or play where the rod connects to crankshaft. this usually results from a constant lack of engine oil. this is when wear between rod and piston, and/or rod and crankshaft will occure. the only way to permanently fix is to machine the rod that is worn, basically taking apart most of the engine. try using a high viscosity oil with an additive. this will fill in...
Why does your 93 Cadillac DeVille knock when the engine is accelerating?
If it is more of a ping than a knock then just try running some higher octane fuel in it. If is more of a knock it could be a rod or crankshaft bearing. If it is definitely a knock you should get it looked at right away. ...
Asked in Pontiac Le Mans
How do you quiet rod knock?
That knock could be the piston hitting the cylinder head (spun bearing)... if you keep running it you will only cause more damage. The knock is absolutely not the piston hitting the cylinder head. The knock is because the clearance of the rod bearing to the rod journal on the crank has increased to such a point that there is actually a gap. As the crank turns the rod is "slamming" back and forth causing the sound. In fact, a worn rod...
Asked in Car Sounds
Does cracked flex plate makes nocking noise?
It sure does . Almost like a rod knock . But with a crack flex plate if you press and hold the brake pedel and step on the gas pedel just a little the noise goes away .. With a rod knock the noise gets louder and faster as you step on the gas.. ...
How can you determine what is wrong with a 1990 V-6 3.8 Ford engine from the noises like a rod or rocker arm it makes?
first you must determine that, it's NOT a rod knock or rocker arm