Notices
Tuning, Diagnostics, Electronics, and Wiring HP Tuners | EFILive | Hand Held Programmers | Stand Alone PCM's | Electronics | Wiring Diagrams

Stall won't lock up.

Thread Tools
 
Search this Thread
 
Old 05-17-2016, 01:19 PM
  #21  
TECH Senior Member
iTrader: (5)
 
Wolftrk99's Avatar
 
Join Date: Jun 2013
Location: Virginia Beach,VA
Posts: 5,492
Received 36 Likes on 34 Posts
Default

Have your tuner look at it now that its been "fixed" again and see if it is going into lockip or not.... Alot less expensive than a scanner worth buying that will show you trans data....
Old 05-17-2016, 01:50 PM
  #22  
On The Tree
Thread Starter
 
Furdkiller's Avatar
 
Join Date: Mar 2016
Posts: 143
Likes: 0
Received 1 Like on 1 Post
Default

It wouldn't lock up after the first rebuild, but I took it back to rapid motorsports and it seems like it's locking up and putting in all the gears firm.
Old 05-18-2016, 02:19 PM
  #23  
On The Tree
Thread Starter
 
Furdkiller's Avatar
 
Join Date: Mar 2016
Posts: 143
Likes: 0
Received 1 Like on 1 Post
Default

The paper on the right is the first time I had rebuilt it with these guys then it began to slip. Then I left it again to get repaired and the paper on the left is for today. So the same thing is happening again.
Attached Thumbnails Stall won't lock up.-image.jpeg  
Old 05-18-2016, 03:39 PM
  #24  
TECH Senior Member
iTrader: (5)
 
Wolftrk99's Avatar
 
Join Date: Jun 2013
Location: Virginia Beach,VA
Posts: 5,492
Received 36 Likes on 34 Posts
Default

You my friend need a valve body, take it back to them and tell them they need to update or replace the valve body and find the tsb gm has on the p0894/p1870 codes....
Old 05-18-2016, 04:06 PM
  #25  
On The Tree
Thread Starter
 
Furdkiller's Avatar
 
Join Date: Mar 2016
Posts: 143
Likes: 0
Received 1 Like on 1 Post
Default

Tsb is the technical service bulletin right?
Old 05-18-2016, 08:20 PM
  #26  
TECH Senior Member
iTrader: (5)
 
Wolftrk99's Avatar
 
Join Date: Jun 2013
Location: Virginia Beach,VA
Posts: 5,492
Received 36 Likes on 34 Posts
Default

Yes, may be a PI (preliminary information) bulletin but either way its out there
Old 05-19-2016, 07:47 AM
  #27  
On The Tree
Thread Starter
 
Furdkiller's Avatar
 
Join Date: Mar 2016
Posts: 143
Likes: 0
Received 1 Like on 1 Post
Default

Also another thing bugging me is the shift points on cruising speed. Like I said before 1-2 10mph 2-3 20mph and 3-4 30 mph. When I first had this truck it was 1-2 10mph 2-3 around 25 and 3-4 45. When I got it rebuilt the first time it shifted that was aswell for 3 days then it stopped shifting that way.
Old 05-19-2016, 08:24 AM
  #28  
TECH Senior Member
iTrader: (5)
 
Wolftrk99's Avatar
 
Join Date: Jun 2013
Location: Virginia Beach,VA
Posts: 5,492
Received 36 Likes on 34 Posts
Default

Shift points are a little low... Which is in the tables, under different tps% its going to **** at lower speeds....
Old 05-19-2016, 09:58 AM
  #29  
On The Tree
Thread Starter
 
Furdkiller's Avatar
 
Join Date: Mar 2016
Posts: 143
Likes: 0
Received 1 Like on 1 Post
Default

Today I drove my dad's truck and that one shifts 1-2 around 10, 2-3 20, 3-4 around 30 but then it feels like another shift at 40 mph. That's how my truck felt but last shift at 45.
Old 05-19-2016, 10:30 AM
  #30  
TECH Addict
iTrader: (7)
 
madmann26's Avatar
 
Join Date: Feb 2013
Location: Somewhere north of 285, south of 985.
Posts: 2,987
Received 371 Likes on 299 Posts
Default

It sounds like **** poor tuning.

You should have 3 shifts. 1-2, 2-3, 3-4.

The "5th" shift is the converter locking up. Depending on how it's tuned, it could be a small "thump" or a large "thump".

For me, lockup is a large "thump", my rpm's drop significantly and it takes a fair amount of pedal to get it to unlock.

As for the shifts, that's all tuning. I use the Bluecat software and adjust the aggressiveness of how long the gear holds before a shift and how sensitive it is to downshift.

Where are you located?


Quick Reply: Stall won't lock up.



All times are GMT -5. The time now is 05:28 PM.