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Old 09-02-2006, 10:50 PM
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torque converter banging??? Flywheel or tranny??

hey guys
i got a 1989 blazer s10 with a 4.3L v6 and an older th350 transmission. The stock 700R4 blew up before i got the truck and it was replaced with a turbo 350 and a new torque converter. Lately when i've been starting the truck, theres a banging either in the starter or in the torque converter area. I put a 9/16 wrench on the bolt of the torque converter and moved it both ways, it will move about an inch and then stop and when you push the other way it goes about an inch then stops, im not sure if thats what th350's are supposed to do or if thats normal. Also i think it might be the starter because i was starting the truck the other day and something got in the way of the teeth for the flywheel and the teeth on the starter and made a *ping* noise and fell to the ground. The piece that came out is about 3/4" long and its a hollow pice of steel with a slit running down the side of it. Im not exactly sure if that would cause this problem and that piece that came out was something to do with the inside of the starter that allows the gear to come down and bang the flywheel or a clip to hold something in the starter, but i dont know where else this piece would come from, but im just posting it on the board to see if anybody had a clue. Also when i start the truck it has a rough "sounding" start and when its running its fine, but when i turn the truck off, the noise comes back until the crank stops moving and thats it. One of my buddies said it was the starter for sure, until i showed him that the torque converter moved about an inch either way then stopped, but im not certain if thats normal or not.. ANy help???? i have no idea and i just dont want to buying parts without fixing the problem. Thanks
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Last edited by boneyard Buick; 09-02-2006 at 11:05 PM.
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