Trans will only shift manually - Blazer Forum - Chevy Blazer Forums

1st Gen S-series (1983-1994) Tech Discuss 1st generation s-series (1983-1994) general tech topics here.

Thread Tools Search this Thread
Old 10-30-2012, 03:02 PM
AndrewO1991's Avatar
Senior Member
Thread Starter
Join Date: Jan 2011
Location: Auburn, Ga
Posts: 546
AndrewO1991 is on a distinguished road
Default Trans will only shift manually

Ok, so to add to all my problems today after I left class my truck felt slow and after paying more attention it didn't shift from 0-70 at all. I can only manually select what gear it's in except 1st shifts to 2nd at about 20 every time if i stay in 1. but 2 is allways 2nd, 3 is 3rd, 4 is 4th. It pulls fine, shifts when i tell it to fine. Now after i got home (as to not break down elsewhere) I turned it off and restarted it and it shifted fine for a couple runs then i backed into my driveway. Freaking wierd, the rest of the week will tell if this is a recurring problem. I didnt notice the speedo quit at all I wasnt looking at it before i noticed the problem so idk. I use the trip odo to tell mpg's every fill up and it seemed to be working. I read something like if you do a burn out on take off it can mess with it, I did take off fast out of my parking lot casue me and my friend like screwing around with his Civic but i didnt hear a squeal and I have a locking rear end that as of yesterday works. So shouldnt have been a one-wheel-wonder. I've been noticing that the truck may not be downshifting into 1st all the time at a stop until I hit the gas. Sometimes if i let my foot off the brake it pulls and sometimes it wont with no gas. IDK if i'm wierd for noticing these things but I'm always waiting for things to break, lol. Comes with the business.
Reply With Quote
Old 10-30-2012, 04:34 PM
Junior Member
Join Date: Aug 2008
Location: lee's summit MO
Posts: 371
trobbins is on a distinguished road

kinda confused so are you having problems shift or not
Reply With Quote
Old 10-31-2012, 12:59 AM
abig84's Avatar
BF Veteran
Join Date: Aug 2009
Location: munster indiana
Posts: 3,422
abig84 will become famous soon enoughabig84 will become famous soon enough

sounds like a vehicle speed sensor, from what the first part of your story says. mine is disconnected and its the same way. manual shift through the gears but if you redline 1st while in D it will eventually shift into 2nd
Reply With Quote
Old 10-31-2012, 09:51 AM
AndrewO1991's Avatar
Senior Member
Thread Starter
Join Date: Jan 2011
Location: Auburn, Ga
Posts: 546
AndrewO1991 is on a distinguished road

Well its fixed itself so far. Maybe false alarm.
Reply With Quote
Old 11-02-2012, 11:25 PM
Starting Member
Join Date: Nov 2012
Posts: 1
95brainpain is on a distinguished road
Default Not shifting and no speedo

Hey, I have a good idea what is wrong with your truck. I have experienced the same thing with my 95 daily driver until it finally wouldn't go past second gear.
I had tried new VSS and many other ideas from here and from mechanics advice.
Here is what solved my problem:

1st make sure your connection is secure at the VSS.
2nd If it is trace the two wires from VSS to PCM (located under glove box) wire loom should run under hood and tuck between A/C coil and passenger front fender. The wires will be with approx. 50 or 60 other wires. But don't worry..... at least in my 95 there were only 2 wires that are twisted into a "rope" look out of the whole bunch. They are purple/white and Green/black on 2 wheel drive (light green/black and purple/white 4 wheel drive).
3rd Cut old wires and abandon.
4th replace, reroute, plug in and make water tight connections (lots of black tape and butt connectors)
5th Drive and enjoy! Wires get beat up and lose coating over the years and can't send the signal needed.
Good luck!
If I get enough interest to this seemingly huge problem, I can post a block of pics and video to you tube. You decide.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Transmission starts in high gear and will only shift manually??? Need Help ws6power1 Engine & Transmission 4 08-09-2014 10:10 PM
4L60E Drive has no power, must manually shift, ideas? The Rolling Turd Engine & Transmission 9 11-15-2011 07:43 PM
Shifting Manually but not Automatically...Mysteries of the Auto Trans hill1 Engine & Transmission 5 06-05-2010 02:40 AM
1999 manually disengaging the 4x4 joe72 Engine & Transmission 0 08-05-2009 05:30 PM
Dome lights only work manually 98BlazerLS 2nd Gen S-series (1995-2005) Tech 1 01-06-2005 11:37 PM

1994, 2000, 2500, 94, automatic, blazer, chevy, manually, s10, shift, shifts, transmission, truck

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

Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 12:27 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 and affiliated sites.