PerformanceTrucks.net Forums

GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

Does a Gear Change Affect the Shift Points on an Auto?

Thread Tools
 
Search this Thread
 
Old Aug 20, 2008 | 05:23 PM
  #1  
dug's Avatar
dug
Thread Starter
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,727
Likes: 0
From: Phoenix
Default Does a Gear Change Affect the Shift Points on an Auto?
I know the speedometer will be off but will anything else be affected? Will it turn on the ses light?
Reply
0
Old Aug 20, 2008 | 06:34 PM
  #2  
dug's Avatar
dug
Thread Starter
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,727
Likes: 0
From: Phoenix
Default
does anyone know?
Reply
0
Old Aug 20, 2008 | 07:06 PM
  #3  
Stoichiometric's Avatar
Stoichiometric
TECH Addict
iTrader: (10)
 
Joined: Nov 2005
Posts: 2,199
Likes: 0
From: Way out there
Default
Is the ses on or the abs light? The gears will trip the abs light if the ratio is not adjusted for in the tune. The shift points will be off too.
Reply
0
Old Aug 20, 2008 | 07:14 PM
  #4  
dug's Avatar
dug
Thread Starter
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,727
Likes: 0
From: Phoenix
Default
havent driven it yet.

how will the shift points be affected? too soon or too late?
Reply
0
Old Aug 20, 2008 | 07:20 PM
  #5  
trever1t's Avatar
trever1t
2nd fastest 5.3 ECSB
iTrader: (14)
 
Joined: Oct 2005
Posts: 26,690
Likes: 1
From: NorCal
Default
depends on what gear you had and have.
Reply
0
Old Aug 20, 2008 | 07:25 PM
  #6  
BlackGMC's Avatar
BlackGMC
Resident Retard
iTrader: (31)
 
Joined: Jan 2006
Posts: 17,216
Likes: 20
From: Fort Worth - TX
Default
It will also affect your TCC lockups...
Reply
0
Old Aug 20, 2008 | 07:25 PM
  #7  
dug's Avatar
dug
Thread Starter
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,727
Likes: 0
From: Phoenix
Default
going from 3.73 to 4.56
Reply
0

Trending Topics

Old Aug 20, 2008 | 07:28 PM
  #8  
dug's Avatar
dug
Thread Starter
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,727
Likes: 0
From: Phoenix
Default
looks like I better get it tuned b4 the trans gets fuckd up
Reply
0
Old Aug 20, 2008 | 07:32 PM
  #9  
trever1t's Avatar
trever1t
2nd fastest 5.3 ECSB
iTrader: (14)
 
Joined: Oct 2005
Posts: 26,690
Likes: 1
From: NorCal
Default
you went down (or is it up, that always confuses me) by like 20% so that for the same speed the rpms will be that much higher, SO, if you were shifting at 35mph before you still will but the rpms will be more.
Reply
0
Old Aug 20, 2008 | 08:03 PM
  #10  
dug's Avatar
dug
Thread Starter
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,727
Likes: 0
From: Phoenix
Default
thats weird. If the shift points are based off of speed, you would think since the speedometer changed with the gear it wouldnt matter.
Reply
0



Advanced Search

All times are GMT -5. The time now is 11:31 PM.