I always wonders what it could be .. i have a 2001 gt and i usally drive it everyday and im wondering can my transmission be really that bad if i drive it for atleast a good 1-2 hours it starts to shift hard but before that its smooth and runs perfect im guessing its because of heat ? never noticed it skipping or anything its been happening for a while but 241ks on it everything is orignial ! engine and trans

any codes?

i guess it coule be detecting some slipping and rased the line pressure to compensate

_________________

92 LeBaron Convert: Turbo 3L 97 Grand Prix GT 4dr "Frankenstein": L67 4t65 swap
97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater

when was the last time you checked the fluid level/changed the filter?

_________________

'05 WRX STi - COBB Stage 2|Invidia DP|3" Borla XR-1|Coilovers|Camber Plates|Swaybars|Endlinks|Bushings|Braces|Anti Lift Kit|DBA4000s|SS lines|
Sold: 06 Cobalt SS/SC, 99 GTP 245WHP/326 Ft-lbs, 06 R6

no codes or anything but i heard if i drain the trans oil i might get into more touble sinice the shit in it probably keepin the trans running lol.. and no i never changed the filter

Dropping the pan and changing the filter/replacing the fluid you lose (about 8-9qts) will not hurt your trans. Getting the transmission FLUSHED is what is bad for it and could cause it to start slipping. I would highly recommend that you drop the pan and change the filter.

_________________

'05 WRX STi - COBB Stage 2|Invidia DP|3" Borla XR-1|Coilovers|Camber Plates|Swaybars|Endlinks|Bushings|Braces|Anti Lift Kit|DBA4000s|SS lines|
Sold: 06 Cobalt SS/SC, 99 GTP 245WHP/326 Ft-lbs, 06 R6

so if i drop the pan and replace the filter will i have to add more trans fluid ? (which ones a good one ? )

Yes, you lose anywhere between 7 and 9 qts when you drop the pan to change the filter. Just use Dex III ATF, no reason to pay the extra for dex VI.

_________________

'05 WRX STi - COBB Stage 2|Invidia DP|3" Borla XR-1|Coilovers|Camber Plates|Swaybars|Endlinks|Bushings|Braces|Anti Lift Kit|DBA4000s|SS lines|
Sold: 06 Cobalt SS/SC, 99 GTP 245WHP/326 Ft-lbs, 06 R6

Agreed! I would def. drop the pan and install new filter and fresh fluid in your trans.
This gets neglected by so many when it comes to routine maint. and is part of the reason clutchs wear out so soon on our trans. Shouldn't cost you anymore than a $50 for fresh fluid and the fitler/gasket kit.

perfect will do soon ! hopfully it stops shifting hard i havent ever noticed a gear slip or not having a gear at all works fine and drives fine to hopefully theirs plently life in it figures crossed !

If you plan on doing it yourself, here's a write up for ya: Transmission fluid and filter change on 1997-2000 Grand Prix’s

thanks Bud will do soon !