no downshift to pass - 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 06-10-2005, 11:55 PM   #1
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jun 2005
Location: Ohio
Posts: 125
Thanks: 0
Thanked 0 Times in 0 Posts
markviiisvt4 is on a distinguished road
Default no downshift to pass

ok we've all been bookin along 60 65 come up on that slo a.. and what do we do hit the break peek out for oncoming traffic nail it and continue on with our business. well my 94 ssei decided that yesterday it wasnt going to downshift i pusshed the peddle to the floor and got nothing. i had to slowdown to under 30 mph to get any kind of response from it. now any time i hit the break and try to reaccelerate it makes a funny noise (wich i think is the abs pump) lurches a little bit (like my foot is on the break) and then does squat. i know the converter is locking and unlockin and once im up to cruising speed its fine not even that usual h body shutter. also i now notice that my cruise isn't working but that could be unrelated (don't use it that often.
markviiisvt4 is offline   Reply With Quote
Old 06-11-2005, 11:34 AM   #2
Senior Member
Certified GM nut
 
Join Date: Feb 2004
Location: CT
Posts: 2,099
Thanks: 0
Thanked 1 Time in 1 Post
SSEBONNE4EVA is on a distinguished road
Default downshift

Downshifting is controlled by the throttle position sensor voltage.
I would start there and see if its reading correctly. Idle and WOT (engine off key on).
SSEBONNE4EVA is offline   Reply With Quote
Old 06-11-2005, 11:37 PM   #3
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Jun 2005
Location: Ohio
Posts: 125
Thanks: 0
Thanked 0 Times in 0 Posts
markviiisvt4 is on a distinguished road
Default

thanx for the info i checked it and replaced it because it seemed sort of eratic picked up a few mpg but didnt' help my problem ohmed the shift solinoids to and the shift a one is bad any one know any thing about this?
markviiisvt4 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Bad shifting after WOT downshift. (`01 NA Grand Prix GT) Bugsi 2000-2005 3 11-14-2005 07:33 PM
94 Nonneville Tranny no downshift mullenexd 1992-1999 3 11-07-2005 02:02 AM
95 SE won't downshift to first at stop bill buttermore 1992-1999 39 12-07-2004 12:27 PM
94 SSE tranny downshift stalling bill 1992-1999 6 09-28-2004 03:44 PM
trans slips on highway downshift with SES light bigblue 1992-1999 2 08-04-2003 12:38 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 11:10 AM.


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.