speedometer - 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
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 01-20-2013, 06:04 PM
donwp's Avatar
Registered User
 
Last photo:
Join Date: Oct 2012
Location: Cave City Ky
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
speedometer

I put a 4.8 motor and transmission in a 95 S10 and I cant get speed ometer to work.
Can anyone give me a diagram of how to hook up computer to speedometer to make it work.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-20-2013, 06:37 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 5,294
Wiki Edits: 0

Thanks: 220
Thanked 268 Times in 248 Posts
4.8 litre? did you put the wiring harness and PCM etc on the vehicle?
Are you running a carb? More info plz.
__________________
Fact is stranger than Fiction
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-20-2013, 07:30 PM
donwp's Avatar
Registered User
 
Last photo:
Join Date: Oct 2012
Location: Cave City Ky
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by LATECH View Post
4.8 litre? did you put the wiring harness and PCM etc on the vehicle?
Are you running a carb? More info plz.

yes wiring harness and PCM
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-20-2013, 07:56 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 5,294
Wiki Edits: 0

Thanks: 220
Thanked 268 Times in 248 Posts
4.8 is a newer communication system.It uses CAN or control area network.
The 95 may or may not be CAN.
The 4.8 electronics will send a completly different signal than the 95 as the 95 would most likely be a pulse modulated signal, like a square wave or sine wave,unless it is CAN also.
You will need some type of converter that will read a CAN protocal message and convert it to a pulse.
The only other option would be to tap into the vehicle speed sensor at the trans, and wire it to the speedo input at the cluster. I would have to research the wiring diagram for the 95 to see if the speedo processes the speed signal or if it is processed in the PCM.
If the 95 used the speedo to process the speed signal, then it could be as easy as splicing to the VSS at the trans and maybe putting a signal amp on it, as it may not have enough output to run the new PCM and the speedo.
I will need to know what the vehicle is and the donor vehicle is, so I can check system configuration and check wiring schematics. it may be as simple as moving a few wires around in the newer donor car harness, or splicing 2 wires at a different location.
Did you have to cut any wires from the old harness when installed the new?
Also what was the donor vehicle?
__________________
Fact is stranger than Fiction

Last edited by LATECH; 01-20-2013 at 08:03 PM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 01-20-2013, 08:09 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 5,294
Wiki Edits: 0

Thanks: 220
Thanked 268 Times in 248 Posts
The Dakota SGI-5 C may be just the ticket
Looks like it can be tied right to the VSS with no problem. Then adjust for your specific speedometers needed input.
__________________
Fact is stranger than Fiction
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 01-20-2013, 09:14 PM
donwp's Avatar
Registered User
 
Last photo:
Join Date: Oct 2012
Location: Cave City Ky
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
speedometer

Quote:
Originally Posted by LATECH View Post
4.8 is a newer communication system.It uses CAN or control area network.
The 95 may or may not be CAN.
The 4.8 electronics will send a completly different signal than the 95 as the 95 would most likely be a pulse modulated signal, like a square wave or sine wave,unless it is CAN also.
You will need some type of converter that will read a CAN protocal message and convert it to a pulse.
The only other option would be to tap into the vehicle speed sensor at the trans, and wire it to the speedo input at the cluster. I would have to research the wiring diagram for the 95 to see if the speedo processes the speed signal or if it is processed in the PCM.
If the 95 used the speedo to process the speed signal, then it could be as easy as splicing to the VSS at the trans and maybe putting a signal amp on it, as it may not have enough output to run the new PCM and the speedo.
I will need to know what the vehicle is and the donor vehicle is, so I can check system configuration and check wiring schematics. it may be as simple as moving a few wires around in the newer donor car harness, or splicing 2 wires at a different location.
Did you have to cut any wires from the old harness when installed the new?
Also what was the donor vehicle?
the donor was a 2001 gmc somona 4.8 2 wheel drive-------yes i cut some wire from the s10 system but i dont think that i cut any from the speedometer
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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
700r4 electronic speedometer conversion to mechanical speedometer DBRUNT@HOTMAIL.COM Transmission - Rearend 9 07-11-2012 11:30 PM
speedometer Mark1955 Transmission - Rearend 2 10-22-2010 09:48 PM
speedometer ronb996 Electrical 1 10-12-2008 01:19 PM
Speedometer Lilcarrin General Rodding Tech 7 07-27-2007 01:54 PM
New speedometer OneMoreTime Hotrodders' Lounge 3 01-28-2005 10:22 AM


All times are GMT -6. The time now is 03:58 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.