'93 SSEI Transmission Knocking in Park - Page 2 - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

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'93 SSEI Transmission Knocking in Park

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Old 03-03-2006, 05:03 PM
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Ok, Bill said everything that I was gonna say, but I didn't see this asked yet.


The noise, does it get louder or stay consist with the engine speed? Or go away?
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Old 03-04-2006, 01:49 PM
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Hi, the noise is consistent with engine speed.
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Old 03-04-2006, 01:55 PM
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I would also say that you need to check the flexplate bolts, or possibly the Torque Converter bolts. I just fixed this on a friends S10 4.3, he thought he had a rod knocking.
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Old 03-04-2006, 02:02 PM
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Thanks for the info. My mechanic did check the flywheel bolts and said they were tight. Is that the same as the flex plate?
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Old 03-04-2006, 02:44 PM
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Originally Posted by 93Bonny
Thanks for the info. My mechanic did check the flywheel bolts and said they were tight. Is that the same as the flex plate?
Yes they are the same thing.

The TC bolts coming loose is a common problem on GM'*. I cracked my flywheel on my pick up, had them come loose. The car I haven't had any of those issues with YET. **Fingers crossed**
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Old 03-05-2006, 09:47 AM
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Originally Posted by ChaseSmith
I would also say that you need to check the flexplate bolts, or possibly the Torque Converter bolts. I just fixed this on a friends S10 4.3, he thought he had a rod knocking.
Yes ! That'* what I initially thought the problem was with the 4.0 L Jeep.
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Old 03-05-2006, 12:08 PM
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Just to clarify - there are 8 bolts that hold the flex plate to the end of the crankshaft. There are 3 bolts that hold the flex plate to the torque converter. I don't know if it is possible to get at the flex plate / crank bolts with the engine and trans still attached. Anyway, if either set of bolts are loose, a heavy knocking sound could result.
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