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#1
05-16-2005, 10:14 PM
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4l80e shutter problem
I have 97 2500 4x4 burb with 5.7l , I just started having a problem with torque converter lockup ,above 42 mph when converter locks up it shutters ,i thought it was a miss at first (couln't fig out)so i took it to local shop ,they changed fluid & added additive to it told me it was the converter & try do drive it for a while and if the additive doesn't work they would change the conv.well it's still shutering i'm thinking i can change the converter myself,should I or take it to trans shop could it be the tcc valve ?? any suggestions
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#2
05-17-2005, 02:29 AM
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Re: 4l80e shutter problem
It could be the tcc apply valve. See http://www.transmissionspecialty.com.../34994-01K.htm
I think you need to drop the valve body to replace it. Might be time for a Transgo Reprogramming kit (since you have to take the valve body out anyways  )//2000CAYukon
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