Knock converter

Register Log in. Join the Community! Chat with others, create a build thread, post questions and answers. Get involved! Logging in will also remove many of the advertisements, along with this notice. Login now! You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser. Loud knocking sound from torque converter or flywheel.

Thread starter kidwiththelaser Start date Oct 17, There is a real loud knocking sound coming from what sounds like the torque converter or flywheel area. Its a steady knocking sounds and is pretty loud.

Almost sounds like rod knock, but I just put the engine in and its been doing it since i first started it up. Only reason I havent pulled the oil pan yet is because I bought the engine from a reputable shop, it runs real smooth and it really sounds like its coming from the torque converter or flywheel.

Has anyone ever heard of the flexplate knocking against something, or the torque converter knocking as it fails? Both engine and transmission fluid look nice and clean. Car Cannibal Proven Member. Do you have a Precision 2g lockup converter? If so, that's your sound, the 3 clutches. If not, might be a loose flexplate to torque converter bolt.

Take off the inspection cover and see whats going on Car Cannibal said:. Click to expand Happened to me before. Last edited: Oct 21, Put the front of the car up on jackstands, take the inspection cover off, turn the crank with a large ratchet and check out all the flexplate bolts..

Turn the crank clockwise at all times Last edited: Oct 22, YouTube - Damn dsm idling goofy Every time I try to post the link nothing shows up in my post. Gonna say effe it and pull the transmission this weekend. Ill update the thread when I figure it out. You must be logged in to view this image or video. Turns out the flexplate bolts were right up against the starter plate. And when the engine turned over the flexplate bolts would shave a bit of the starter plate away.

That was the knocking noise I was hearing. Fortunately it was nothing major! I have the transmission out and a new starter plate on the way. How did the wrong starter plate get on the car? I just swapped in a new engine. The engine came from a car with a manual trans, and this car is auto. Cant remember if I swapped starter plates or not, but this one is a bit bent up too. Engine spark knock happens when, the fuel mixture is subjected to either too much compression heat or both. In case the catalytic converter is totally plugged, it will prevent you from running your vehicle.

Some situations, the catalytic converter might come to be completely fused directly or overtime, then you need to replace it immediately. The smacking noise was the inside of the spark plug being pounded against the outside of the plug from the combustion of the engine. So the whole inside of the plug was moving up and down while the outside of the plug was stationary.

The engine starts to misfire for obvious reasons. Browse: Home Other Will a clogged catalytic converter cause spark knock? Will a clogged catalytic converter cause spark knock?