Overdrive engagement - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 11-28-2005, 01:55 AM   #1
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Sep 2002
Location: Riverton, Wyoming
Posts: 740
Thanks: 0
Thanked 0 Times in 0 Posts
egladman is on a distinguished road
Default Overdrive engagement

right now it goes into overdrive at about 55mph light throttle with TCC lockup. Will adjusting my kickdown make it go in sooner. Seems like everyone else'* goes in at about 48-50mph. I'm gonna check this out in the morning and see if it makes a difference.
egladman is offline   Reply With Quote
Old 11-28-2005, 02:22 AM   #2
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

the TCC lockup depends on the Engine load, and TPS sensor, with a few inputs
1993 SLE is offline   Reply With Quote
Old 11-28-2005, 04:14 AM   #3
Senior Member
Posts like a Camaro
 
Join Date: Jan 2004
Location: Colorado Springs C.O.
Posts: 851
Thanks: 0
Thanked 0 Times in 0 Posts
duffer26 is on a distinguished road
Default

well i think it is normal mine goes in to 4th at 48 and then tcc lockesup at 55
duffer26 is offline   Reply With Quote
Old 11-28-2005, 09:51 AM   #4
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

It'* not off by much. Like 1993 SLE mentioned, there are varying inputs and factors that will make it shift and lock.

Engine temp
Load
Hills
Throttle
Tons of stuff
BillBoost37 is offline   Reply With Quote
Old 11-28-2005, 10:02 AM   #5
Senior Member
Posts like a Northstar
 
Join Date: Apr 2004
Location: Minneapolis, MN
Posts: 566
Thanks: 0
Thanked 0 Times in 0 Posts
CSFiend is on a distinguished road
Default

Just my $0.02, but just be glad it even goes into overdrive, regardless of the speed it engages at. After a few hundred dollars, mine finally will engage and hold full lockup. And that'* AFTER spending $375 on a used transmission.
CSFiend is offline   Reply With Quote
Old 11-28-2005, 10:03 AM   #6
Senior Member
Posts like a Northstar
 
Join Date: Apr 2004
Location: Minneapolis, MN
Posts: 566
Thanks: 0
Thanked 0 Times in 0 Posts
CSFiend is on a distinguished road
Default

Just my $0.02, but just be glad it even goes into overdrive, regardless of the speed it engages at. After a few hundred dollars, mine finally will engage and hold full lockup. And that'* AFTER spending $375 on a used transmission.
CSFiend is offline   Reply With Quote
Old 11-28-2005, 11:47 AM   #7
Executed
 
Join Date: Dec 2002
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
shortstuf212559 is on a distinguished road
Default

my ssesc goes into lockup at 48mph every time, unless im mergeing on the expressway or such.
shortstuf212559 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Went to store-had overdrive, coming back-NO OVERDRIVE Hafrod Buick 13 06-01-2006 10:44 PM
Transmission engagement opensourceguy 1987-1991 3 08-06-2005 10:18 AM
slow 1st gear engagement opensourceguy 1987-1991 8 10-09-2004 04:48 PM
2000+ SSEi O'Drive Engagement Speed compyelc4 2000-2005 2 04-02-2004 01:14 AM
overdrive or not to overdrive duffer26 1992-1999 10 03-13-2004 12:09 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:35 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.