Pontiac GTA Enhancement information and discussions with Technical DIY and performance tuning information for the hardcore Pontiac GTA Owners and Enthusiasts.
Forum | Register Now | Members | Search | How Do I... | Calendar

Go Back   The GTA Source Page Message Forums > GTA SPECIFIC > GTA TECH

GTA TECH Want to discuss technical topics about your GTA.... engine tuning, mechanical upgrades, problem areas, etc.? Then post it HERE!

Reply
 
Thread Tools Display Modes
Old 10-31-2015   #1
trickis1127
Registered User
 
Join Date: Apr 2013
Posts: 39


1988 GTA Transmission shift issues

Hi all. Spent the last couple nights reading through all the posts on the forum about transmission issues, I've got one and I'm hoping for some advice. Car has been sitting for the past couple years we just did restoration brought it back to life had the fluids topped off but did not change fluid and filter yet. When driving cold it would shift very hard from 1st to 2nd and then 2nd to 3rd. After about five minutes once it warmed up it shifted perfectly nice and smooth nice and quiet. Yesterday we did drop the pan,change the filter brand-new fluid and cleaned everything up put it back together. Drove it for about 20 or 30 minutes and it was beautiful shifting great everything was fine . All of the sudden after a light turned green started driving and it would not shift into second gear, winding out in first very high RPMs and won't kick to second gear. We didn't hear any noises, doesn't sound like anything broke so I'm extremely confused how it could go from perfect to not shifting anymore. Will take a closer look at the TV cable today but it seems fine and like I said was working perfectly for about 20 or 30 minutes also rechecked the fluid levels those are fine as well. Pulled out the governor the plastic gears seem intact no other obvious damage to that. Could really use some advice on something we may have overlooked. Thanks so much for your help !
trickis1127 is offline   Reply With Quote
Old 10-31-2015   #2
trickis1127
Registered User
 
Join Date: Apr 2013
Posts: 39


Re: 1988 GTA Transmission shift issues

Correction, it is shifting from 1st to 2nd, but not 2nd to 3rd. Thinking now it has to be burned up 3-4 plates. Can't see any other reason for it working perfectly for 30 minutes then for it to just stop going into 3rd. Thoughts or suggestions are most welcome.
trickis1127 is offline   Reply With Quote
Old 11-03-2015   #3
MunsonGTA
Bad luck or no luck
 
Join Date: Jun 2004
Location: Ravenna, OH
Posts: 1,946



GTA Year: 1987
GTA Engine: Custom
Re: 1988 GTA Transmission shift issues

If it won't shift from 2nd to 3rd, most likely the trans is toast and needs rebuilt.
__________________
87 GTA: Forged 408 LSX short block, TEA stage 2 cnc ported 243 heads, BTR Stage 3 stroker cam, Fast 102 intake, NW 102 TB, Longtube headers, custom 411 ECM, custom harness, custom tuned, Performabuilt stage 2 4l60E with PTC 2800 stall, 9 bolt rear with 3.70 gears and TAP girdle.

11.16 at 123 mph.
MunsonGTA is offline   Reply With Quote
Old 11-03-2015   #4
lee01
Registered User
 
lee01's Avatar
 
Join Date: Nov 2014
Posts: 75


Re: 1988 GTA Transmission shift issues

Just been thought this. Twice
one time in my 03 Xtreme pickup and my 89 GTA
Shifted fine and hard 1-2 but no 3-4 gears.
So both time ended up changing the tranny.
Got myself a nice rebuilt HD tranny with shift kit, stall etc... for my GTA.
700R4 are not cheap.
__________________

1989 TTA Tribute
lee01 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
1988 gta for sale ronal firehawk rims! indiana542003 GTA CARS FOR SALE 2 12-16-2013 08:37 AM
1988 GTA Trans-Am Anniversary Edition pewbert GTA CARS FOR SALE 4 01-04-2012 02:56 AM
1988 GTA Convertible For Sale swace123 GTA CARS FOR SALE 1 07-23-2004 06:50 AM
1988 GTA w/TTA drivetrain for sale SLZ GTA CARS FOR SALE 0 06-23-2004 06:55 AM
1 BAD 1988 GTA For Sale in Tampa, FL 1BAD88GTA GTA CARS FOR SALE 0 08-30-2003 04:31 PM


All times are GMT -5. The time now is 06:54 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.