4L60E shift/speedo problem when cold - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 10-18-2006, 06:22 PM
Registered User
Join Date: Oct 2006
Location: Concord,NH
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
4L60E shift/speedo problem when cold

I have spent alot of money and time on trying to correct this problem. I have been to the GM dealer several times and they changed out the speed sensors. I had a used tranny from the bone yard installed as the other tranny died. I did have the PCM out a few times to check the connectors, and disconnected the battery a few times to wipe out the codes. It wont shift out of 1st when cold and the speedo wont work . It takes about fifteen minutes to correct the problem, but then it works fine. Could it be a servo or does the PCM need to be reprogrammed?

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 10-22-2006, 06:41 PM
Registered User
Join Date: Oct 2006
Location: VIRGINIA
Posts: 690
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
4l60e speedo problem when cold

you said you have had the computer out,you need a wire diagram that will id the vehicle speed sensor pinouts at the computer.backprobe these pins with dvom to monitor the vss readings.since the problem occurs when cold you can isolate this concern ie is the vss not sending the ac voltage signal when cold or is the computer the problem,i will keep an eye on your post,if you need more help
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Yargh, carbureator problem is driving me nuts (but not my car!) caustic meatloaf Engine 12 05-21-2006 12:41 PM
Warm engine problem, no power 78transam Engine 14 05-10-2006 07:19 AM
Heat Soak Problem Solved... 73oldsman Electrical 2 04-19-2006 06:32 PM
Ignition Problem malibuman66 Electrical 17 01-24-2006 01:05 AM
Yet another small block problem... IWasBlown Engine 3 07-11-2003 08:23 PM

All times are GMT -6. The time now is 02:56 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.