Thread: Weird Shifting 04 GT

Results 1 to 6 of 6
  1. #1 Weird Shifting 04 GT 
    SE Level Member
    Join Date
    Sep 2014
    Location
    Los Angeles, Ca
    Posts
    8
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Have a 04 Grand Prix GT2, all stock and this morning when driving home from work it started to like jerk every time the gear shifted or when I let off the gas, it still shifted thru every gear and pulled up hills and made it home, jst wasn't shifting smooth as normally. So I got home , shut the car off for 5 mins then drove it up the street and it wasn't doing it anymore. What should I think? Should I jst ignore it or should I take action , fluid is a bit dirty but I thought it would be a mount , trans or lower motor mount , but it threw me off when it stopped doing it after being shut off and on, sorry for the long story btw
    Reply With Quote  
     

  2. #2 Re: Weird Shifting 04 GT 
    GTX Level Member Travisgt2's Avatar
    Join Date
    Jan 2013
    Location
    leavenworth ks
    Posts
    1,745
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    pan drop and filter change isnt to hard to do if you want to go that way you need 7.4 qt and dont cheep out on filter cause when you do you get the cheap gasket with it. id check the fluid level and see if its burnt or not if smells like burnt toast change it.
    04 GT2: 180 t-stat, cold air intake, reptile tune, plog, hv3, gt1 cam, 90#springs, new push rods, new lifters, port polished heads, lim, uim and tb, 06 Impala brakes and steel brake lines. Cosmetic: black roof rails, under glow, Pontiac ground light, blue hud dic radio controls and cluster. To come custom hood.
    Reply With Quote  
     

  3. #3 Re: Weird Shifting 04 GT 
    Solving problems BrandonHall10's Avatar
    Join Date
    Mar 2014
    Location
    Tucson
    Posts
    3,191
    Thanks (Received)
    10
    Likes (Received)
    146
    Dislikes (Received)
    3
    Re-use the factory gasket if it's still in there.

    I've seen where very dirty fluid will restrict flow through the filter enough to cause problems. Let it sit for a while, and the crud will drain back and the problem will temporarily go away. In this particular trans, the TC clutch came apart. Any codes?
    Reply With Quote  
     

  4. #4 Re: Weird Shifting 04 GT 
    Bastard Reptile's Avatar
    Join Date
    Dec 2007
    Location
    Kansas City, MO
    Posts
    3,459
    Thanks (Received)
    0
    Likes (Received)
    2
    Dislikes (Received)
    0
    Sounds like the TCC is about to act up.
    Reply With Quote  
     

  5. #5 Re: Weird Shifting 04 GT 
    GT Level Member
    Join Date
    May 2012
    Location
    Bloomington, IN
    Posts
    171
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Yeah it sounds like some sort of pressure control solenoid, I wouldn't be surprised if you're transmission is throwing a P1811 code.

    http://www.tripleedgeperformance.com...ift-P1811.html

    If you do drop the trans pan, I would put in a trans-go-shift kit. I made the mistake of assuming just changing the fluid would solve the problem, a month later dropped it again and put the shift kit in, night and day difference to extend the life of the transmission.

    I also put in a small trans cooler as well there are some other thoughts on extending the life of the transmission

    http://www.grandprixforums.net/threa...D-Transmission
    Reply With Quote  
     

  6. #6 Re: Weird Shifting 04 GT 
    GXP Level Member Grimsin's Avatar
    Join Date
    Feb 2011
    Location
    St Thomas Ontario
    Posts
    2,316
    Thanks (Received)
    0
    Likes (Received)
    1
    Dislikes (Received)
    0
    Your transmission is overheating/taking to long to shift . The pcm sees this and puts out max line pressure. Both of my old transmissions did this.
    you can change fluid and filter but it never helped my transmissions it actually made the one worse...
    Like robin said what a lot of ppl do for a permanent bandaid fix is fluid and filter change and install the transgo shift kit while they are down their.
    Reply With Quote  
     

Similar Threads

  1. changed thermostat and now shifting weird
    By procomp in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 3
    Last Post: 11-06-2014, 09:06 PM
  2. Weird Shifting Problem
    By Btownmills in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 7
    Last Post: 06-17-2012, 08:21 AM
  3. Weird Shifting Problem
    By Btownmills in forum General Tech Discussion
    Replies: 0
    Last Post: 06-14-2012, 11:41 PM
  4. First Run on the track, and weird shifting issue
    By speedy2 in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 3
    Last Post: 09-12-2010, 03:41 PM
  5. Weird shifting problems
    By Sick03L in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 2
    Last Post: 07-09-2008, 07:48 PM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •