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#1
12-11-2004, 01:54 AM
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1997 GP Hard Shift
FYI...I have a 1997 Grand Prix GT with 105,000. I bought it with 70,000. At 85,000, I made the mistake of servicing the Transmission with premium fluid and AC Delco Filter Kit. Within 3,000 miles, it shifts hard, particularly when shifting into O/D. When it goes in and out, you really feel it. If I had it to do over again, I would not have serviced it and would have just waited for it to fail. Now, I have an uncomfortable ride. I priced aftermarket transmissions and ones from the dealer. I will probably buy from Pontiac. They give 3yr/36,000 warranty and at least I know I am getting the one made for my car. Just wanted to pass on if you have on with as many miles as mine did and the trnasmission has not been serviced, leave it alone because the damage is already done. At least it will not ride jerky until the transmission fails. Just my thoughts.
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#2
12-11-2004, 11:35 PM
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what were the prices on the new tranny ? i have 127k on my 97 gp , looks like the tranny has never been service either, im scared to do anythig with it because i think its to late, may cause slipping !!!
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#3
01-09-2005, 05:34 PM
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Re: 1997 GP Hard Shift
on our 99 i serviced the tranny - it doesnt seem to have any strange things goin on with it yet ... lol - been a 1 1/2 140k runs real smooth an strong 3.8
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#4
01-14-2005, 10:25 PM
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Rebuilt mine in june @ 112,000 = $2000 w/ 1 year or 12,000 mi.
94 se 3.1 red, B4U
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#6
01-16-2005, 02:23 AM
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Re: Re: 1997 GP Hard Shift
Quote:
not true Not if you know what your doing ...
__________________
 93' Stealth R/T Twin Turbo Intercooled - 24v DOHC 3.0 v6 engine - AWD AWS - 320 hp 317 lb ft. torque when I bought her unmolested hoping to be in the 600-700 hp when finished with ...  ~FASTER THAN A SPEEDING TICKET~ 
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#7
01-28-2005, 09:54 AM
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Hard shifts no more....Seafoam Tranny Addative
Well.....I feel your pain on the tranny shifting thing. I have a 98 GT.....it started acting weird back in July 04. It would either shift hard from 1st to 2nd...or not shift at all into 2nd....and go straight to 3rd. It would also lock up my torque converter when I was coming to a stop.....after travelling on the highway.
After all this....it began to shift hard in all gears...and doinf this at will. Bottom line.....I was looking at 2k to get it fixed.....or drive it this way till it fails completely. I got on this forum and read some stuff.....and asked some questions.....got some great help. The assumption was that the shift soloniod was going out. Then of course......that would not take care of reasons like the torque converter staying locked though.... Long story short guys.......and I stand dumbfounded myself for what I am about to say. I put the Seafoam tranny treatment in the tranny....whithin about 20 miles......85% of my trouble went away. This stuff is supposed to free up hung valves and clean up some of the sludge. I tell you.....I NEVER subscribe to putting som sort of addative like this.......but in desperation I tried it. Now.....based on driveing the vehicle...it appears that the only time I am still having issues is when coming off of the highway.....sometimes....and this seems to be improving....I ahve 150- miles on the tranny with the seamfoam added. Guys.......I have no idea if other addatives would have done the same thing....but before you go and spend a hell of of lot of money.......try one for yourself....... Good luck.....I hope this thread helps some one with as much desperation that I have had in this matter Ernie
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Also, if you never serviced the transmission, leave it like that. If you touch it, you're looking for trouble.
