12 Valve Engine and Drivetrain Talk about the 12V engine and drivetrain here. This is for 1994-1998.5 engine and drivetrain discussion only.

GSK needed or auto trans shifting to late?

Thread Tools
 
Search this Thread
 
Old 11-30-2011, 11:47 PM
  #1  
Registered User
Thread Starter
 
joem's Avatar
 
Join Date: Jun 2011
Location: Brightwood, Oregon
Posts: 854
Received 2 Likes on 2 Posts
GSK needed or auto trans shifting to late?

Ran the 12v hard today after some pin heads stole $1,300 worth of products from my work. Ran after em and jumped in the Dodge to get there plate numbers. Found out that 4wd was required to keep up on the wet streets due to my open diff. The only issues I had with the truck is that it was shifting at about 2,800RPM when under full throttle.... and I swear the P pump was de-fueling and throwing me forward just before every shift, then when it did upshift i would gain speed like crazy until it reached the same high RPM then back off. IS my truck shifting normal, or is it common for the pump to defuel before it grabs the next gear? Lower stall converter? GSK? TPS sensor? All the above?
Needless to day I couldnt even come close to them on the freeway
Old 12-01-2011, 06:51 AM
  #2  
Registered User
 
j-fox's Avatar
 
Join Date: Mar 2002
Posts: 2,541
Likes: 0
Received 1 Like on 1 Post
You need the gov. spring kit.
It will make a difference in performance that you will like.
Old 12-01-2011, 11:00 AM
  #3  
Registered User
 
infidel's Avatar
 
Join Date: Dec 2003
Location: Montana
Posts: 14,672
Likes: 0
Received 9 Likes on 9 Posts
It's the TPS kicking you out of OD as it was intended to do at high throttle.
Sort of like way most autos downshift when you punch it for passing.
Way to fix it is with one of these> http://www.tstproducts.com/Torque%20...p%20Switch.pdf
Old 12-03-2011, 11:29 PM
  #4  
Registered User
Thread Starter
 
joem's Avatar
 
Join Date: Jun 2011
Location: Brightwood, Oregon
Posts: 854
Received 2 Likes on 2 Posts
The lockup works well for the most part, its not as smart as my old durmax allisson but it works well and stays locked until totally floored. I think i will do 3,000 rpm spring kit and a new ats low 1600rpm stall converter?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rammike
24 Valve Engine and Drivetrain
3
11-14-2010 08:17 PM
j_k_auto
Performance and Accessories 2nd gen only
3
10-11-2009 02:07 PM
gorms
12 Valve Engine and Drivetrain
2
01-28-2007 04:28 PM
MR HYDROSEED
Performance and Accessories 2nd gen only
6
03-09-2005 10:49 PM
Got Smoke?
Performance and Accessories 2nd gen only
7
10-26-2004 03:57 PM



Quick Reply: GSK needed or auto trans shifting to late?



All times are GMT -5. The time now is 11:16 AM.