Question about 1994 Chevrolet Lumina APV

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94 Lumina Van with 3.8 liter motor. While accelerating from stop the van will drive good until hitting roughly 30 then it wont shift and you have to back off the throttle until it shifts and once it does shift. it then kind of shimmys around and is rough as heck and then you hit bout 45 or so its smooth driving and while its shimming if you let off the throttle it stops shimming if your driving on hiway at 70 every once in awhile you can feel the van kind of surge a little.

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Seems you may have a varnished up transmission valve body, try the conservative approach first, have the trans serviced and flushed with transmission conditioner additive installed along with new fluid...

Posted on Sep 11, 2009

Testimonial: "will try this if need be im going to change filter and fluid and add some addictive see what happens "

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