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my 2001 z51 coupe with 315s and auto trans it is slipping but not like ive ever fellt a trans slip b4, if i leave the shifter in d or od theres no problem ,if i manualyy shift 1st to 2nd to third and back down i get a hesitation on the down shift where its not engaged, i can step on throttle and motor will rev for a split second without movement of car, any ideas , i think its time for a rebuild but not sure , ive got a 115,000 miles onit. any help will be appreciated
Yes did a fluid change n filter, i used the mobil 1 crap , redrained fluid and added amzoil it seems like it changed it for the better just a touch ,
Had the vette level"dug a pit i can sit in and work under car without jacking or lifting in my yard", apprx 100 deg trans temp,car running, filled until it leaked out hole,
Was wondering if possibly since this is a 60E=Electronic trans if it might be somethiin electrical, Its just weird its not slippin all the time only when manually shifted which is what i do on the track.
Things ive done to it that might of caused prob . cleaned and lubricated linkage at trans when fluid changed, changed fluid n filter, tuned trans with prowler programmer, tune since been removed, manually shift most of time"not no more" , take it to open track days on road coarses,
Any body had or heard of this prob b4?
I have a video on youtube under "ace48" canyon run that was my last drive, slipping shortly after that.
Last edited by ace48; Dec 31, 2008 at 09:56 AM.
Reason: bad code
Yes did a fluid change n filter, i used the mobil 1 crap , redrained fluid and added amzoil it seems like it changed it for the better just a touch ,
Did the old fluid look brown, or smell burnt? How much clutch friction material did you find in the pan bottom?
It is weird that it only slips when manual shifting. I'm thinking there may be some crap in the valve body passages causing it. Try a power flush before you condemn the transmission. It's worth a try.
Mine started acting strange right after I had 3.73 gears installed. Eventually it crapped out altogether. It had aluminum chunks in the pan. I thought about a RPM replacement but for the same price I got a GM reman and a three year 100k warranty total cost turn key $3200. BTW I had 113,000 on mine.
Last edited by spdracr39; Jan 1, 2009 at 10:03 AM.
Reason: more info