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4T60E rough 3-4 shift under light throttle


johnd89
09-24-2006, 11:13 AM
The car is a '95 riviera supercharged with 135k.
I tought to change the fluid (Royal purple) and filter. it's slightly discoloured, but dosen't smell burnt.
any suggestion?
I'll put in a trans go shift kit too.

thx!!

96riviera18
09-24-2006, 11:52 AM
could be OD not working properly or a small vac. leak

johnd89
09-24-2006, 12:16 PM
thx for the quick reply: I'll give it a try.

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