4l80e making noise

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Nov 4, 2021 | 11:52 AM

snowman916

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4l80e making noise

hi im hoping someone can help me figure out whats wrong with 4l80, i just did a lq9 and 4l80 swap in my 1988 caprice but when car is running there a sqeaking/clunking noise coming from the torque converter area of the transmission. thanks in advance for the help

Nov 5, 2021 | 11:54 AM

bbond105

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Have to looked for a cracked flex plate or loose torque converter bolts?

Nov 5, 2021 | 06:10 PM

snowman916

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Quote:

Originally Posted by bbond105

Have to looked for a cracked flex plate or loose torque converter bolts?

flexplate is brand new and i just check torque converter bolts and they are all tight. i have a video of the noise but im not sure how to post it

Last edited by snowman916; Nov 5, 2021 at 07:26 PM.

Nov 15, 2021 | 05:43 PM

rpturbo

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What is the history of the 80? Did you previously hear it/seen it work?

Nov 15, 2021 | 05:48 PM

vorteciroc

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The One-Way Roller-Clutch for the Stator could be making noise...
or even the Lock-Up Clutch dampening Springs could be making noise.

What is the model of the Torque-Converter?

Nov 15, 2021 | 06:29 PM

snowman916

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i did not see or hear it before i got it, it came with the lq9 i got. i know the pump is working as it should and goes into every gear. the noise and shaking is the only issue with the trans. i haven't pulled the pan and took a look to see if there is any metal shavings/chucks in the fluid.

Last edited by snowman916; Nov 15, 2021 at 06:37 PM.

Nov 15, 2021 | 06:35 PM

snowman916

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Quote:

Originally Posted by vorteciroc

The One-Way Roller-Clutch for the Stator could be making noise...
or even the Lock-Up Clutch dampening Springs could be making noise.

What is the model of the Torque-Converter?

do you think the torque converter is the problem?

im not sure what model it is but i do know its a old style 4l80 with the two cooler inlet and outlet close to eachother