96 gmc tranny problem??? Help please - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


GMC/Chevrolet Truck/SUV When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-27-2013, 07:20 AM   #11
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

they dont really share power and the grounds return to the pcm. i would clean the engine grounds and battery terminals. clear the codes and see what comes back
Attached Thumbnails
96 gmc tranny problem??? Help please-96-98ckeng.gif  
jwfirebird is offline   Reply With Quote
Old 03-27-2013, 12:47 PM   #12
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2013
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Jay_476 is on a distinguished road
Default

Yea I checked the codes but that'* all I came up with I didn't have any tranny codes in there
Jay_476 is offline   Reply With Quote
Old 03-27-2013, 02:21 PM   #13
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

may not be, hard to tell the difference sometimes
jwfirebird is offline   Reply With Quote
Old 03-27-2013, 03:20 PM   #14
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2013
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Jay_476 is on a distinguished road
Default

Yea I'm stumped, I'm gonna replace can positioning sensor, and clean egr, I'll keep updating my proggress on here, I've heard there'* a way to disable tcc lockup if perhaps it was that in overdrive, something to do with running wire from brake to tranny, prettY much fooling the tranny to thinking the brake is always on or something
Jay_476 is offline   Reply With Quote
Old 03-29-2013, 08:11 PM   #15
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2013
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Jay_476 is on a distinguished road
Default

I got around to workin on it, I was gonna replace the cam sensor but turns out it was unplugged the whole time! Lol I plugged it in and all seems fine, no more buck/jerk for now, I've noticed that the going into 3rd it revs up about 2 or 300 rpms before it shifts, is this normal? And if perhaps the tranny was slipping would a tranny flush do anything? Otherwise it seems to shift just fine through all gears
Jay_476 is offline   Reply With Quote
Old 03-30-2013, 09:37 AM   #16
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

usually once they start slipping its only a matter of time, because the slipping speeds the wear. you could change the fluid and add some trans honey, but that might gain you a month or a few days, who knows
jwfirebird is offline   Reply With Quote
Old 03-30-2013, 08:07 PM   #17
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2013
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Jay_476 is on a distinguished road
Default

It only does it goin into 3rd it revs up a little before it shifts, would that stop slip tranny additive help any?
Jay_476 is offline   Reply With Quote
Old 03-30-2013, 08:50 PM   #18
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

i wouldnt recommend any additive unless you know for sure its done. im no auto trans expert. but i havent come across any slipping that didnt require rebuild eventually
jwfirebird is offline   Reply With Quote
Old 04-01-2013, 02:40 AM   #19
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2013
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Jay_476 is on a distinguished road
Default

U think a tranny flush would be a good idea?
Jay_476 is offline   Reply With Quote
Old 04-01-2013, 06:48 AM   #20
Senior Administrator








Certified Car Nut
 
Mike's Avatar
 
Join Date: Jul 2003
Location: Horseheads, NY
Posts: 15,649
Thanked 1,001 Times in 777 Posts
Mike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond reputeMike has a reputation beyond repute
Default

If the trans is truly slipping, a trans flush would be the last thing you want to do. Draining out old oil also drains out all the clutch material which is actually kind of help you. For a awhile anyway. I say take it to a trans shop for a professional diagnoses.
Mike is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2000 gmc sierra wont start in cold weather.. Please help!!! jhowell562 GMC/Chevrolet Truck/SUV 5 01-07-2014 07:36 AM
PLEASE HELP! Buick, Olds, Potiac, GMC product preview gauges! Livingfora1up Lounge 4 03-25-2013 01:30 AM
1987 Gmc Full Size Van/truck Idle Problem, Need Help! viniepooh 1987-1991 1 02-01-2011 02:38 PM
95 Tranny probs--Tranny guy says common problem? birchymm 1992-1999 5 02-16-2006 05:48 PM
Please read. Tranny problems with a newer tranny? bonnie94ssei General GM Chat 7 11-03-2003 02:44 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:15 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.