Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

VSS PROB.. HELP !!!

Thread Tools
 
Search this Thread
 
Old Jan 16, 2001 | 09:20 PM
  #1  
Z28IROC350's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2000
Posts: 17
Likes: 0
From: Hag, Maryland, DUH
VSS PROB.. HELP !!!

I got a code #24 (vss circuit failure) and my speedo doesn't work now. I have an 87 Iroc-350/at. I was told that the VSS in on the tailshaft, but Mitchell-on-Demand at work says its behind the speedo. Where is it ? And would that make my speedo not work ? I've called around for a new VSS and the only place that I found that could get one was the dealer for $50. Is there anywhere else that would sell them. I need this fixed like yesterday cause the cops REALLY think I'm made of money. HELP !!

------------------
if you can't fu@k it or race it, it ain't worth havin' !
Reply
Old Jan 17, 2001 | 01:55 AM
  #2  
Jza's Avatar
Jza
Moderator
 
Joined: Jul 1999
Posts: 4,384
Likes: 2
From: Tulsa, OK
It might be the cable itself. If it doesn't turn your speedometer, the VSS won't put out a signal. It's behind the speedometer by the way. It wasn't on the transmission itself until 90 I think.

And a new cable is cheap and you could do it in an afternoon yourself with a little cursing and help from someone with really skinny arms.

Take out the gauge cluster and turn the speedometer from the back by hand (forward! not backwards!) and see if that bumps the needle. Then have someone go underneath and turn the other end of the speedo cable while you watch inside to see if the other end turns.
Reply
Old Jan 17, 2001 | 07:45 AM
  #3  
El Guapo's Avatar
Member
 
Joined: Nov 2000
Posts: 279
Likes: 0
From: SC
The VSS is the electric speedometer. At least as far as l understand. That means that there are no cables. Just a pulse counter.

You should have an electric unit in the tail of the transmission, same place as stock cable gear. Just not a cable. Only a wire or two.

On the back of the speedometer you have a circuit board that interprets information. So both are right.

Clayton
Reply
Old Jan 17, 2001 | 03:48 PM
  #4  
Jza's Avatar
Jza
Moderator
 
Joined: Jul 1999
Posts: 4,384
Likes: 2
From: Tulsa, OK
Not on an 87...
Reply
Old Jan 18, 2001 | 05:49 PM
  #5  
Tim Burgess's Avatar
Supreme Member
 
Joined: Jul 1999
Posts: 1,335
Likes: 2
From: Tucson, AZ, USA
Car: '92 Z28; Dk Teal; Her Pkg
Engine: 305
Transmission: Richmond 6 Spd
Axle/Gears: Moser 9", Detroit Locker, 3.70
Jza is correct - if the speedo is reading zero, it's probably the speedo cable or the speedo gears in the tailshaft of the trans. The VSS is on the rear of the cluster until '90, unless you have a pre '90 factory digital dash.

Tim
Reply
Old Jan 18, 2001 | 09:47 PM
  #6  
Z28IROC350's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2000
Posts: 17
Likes: 0
From: Hag, Maryland, DUH
I spent almost 4 hours workin on it today, the lil tip was broken off the end of the speedo cable in the end of the tailshaft. what a PITA getting the gauge cluster out ! I put the new cable in and it works fine now. Thanx for the help :-) Later,
Chris

------------------
if you can't fu@k it or race it, it ain't worth havin' !
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
$750 L98
LTX and LSX
10
Feb 1, 2025 02:25 PM
GTAman
Transmissions and Drivetrain
16
Jul 3, 2024 07:29 PM
InfernalVortex
Electronics
10
Apr 20, 2021 11:31 AM
Elephantismo
Electronics
14
Feb 13, 2019 12:51 AM
TMZIrocZ350
Engine/Drivetrain/Suspension Parts for Sale
1
Oct 7, 2015 12:09 PM




All times are GMT -5. The time now is 12:15 PM.