78 help
Thread Starter
Racer
Joined: Dec 2002
Posts: 276
Likes: 0
From: riverside ca
78 help
the sedometer doesnt work at all in the car and i was wondering if there is a easy way to dignose the problem and a easy fix by hand.... if i rip out the dash i would like to know what it is im looking at hehe
thanks
thanks
Le Mans Master
Joined: Nov 1999
Posts: 5,768
Likes: 3
From: San Diego CA
Re: 78 help (HcDave1)
A non working speedo is almost always a broken cable. You can pull the speedo cluster out and fish out the cable from there - or you can do the same from below the car at the transmission. Depends on what you find easier.
You will want to pull the cluster to properly install a new cable if that turns out to be the problem.
If the cable is not the problem then it is either in the speedo or the tranny (niether of which is likely) nor easy to repair.
The speedo cluster can be removed without removing the whole of the dash - you will want to lower the steering column to make its removal easier. Take out the several screws that hold the cluster in place and pull towards you in the driver seat - if the column is lowered it wioll come out easier. You will only be able to go so far before the speedo cable will prevent further motion - as well as the wiring harness - both are easy to disconnect from the cluster.
You will want to pull the cluster to properly install a new cable if that turns out to be the problem.
If the cable is not the problem then it is either in the speedo or the tranny (niether of which is likely) nor easy to repair.
The speedo cluster can be removed without removing the whole of the dash - you will want to lower the steering column to make its removal easier. Take out the several screws that hold the cluster in place and pull towards you in the driver seat - if the column is lowered it wioll come out easier. You will only be able to go so far before the speedo cable will prevent further motion - as well as the wiring harness - both are easy to disconnect from the cluster.
Safety Car
Joined: Mar 2002
Posts: 4,411
Likes: 1
From: Okeechobee Florida
Re: 78 help (HcDave1)
im not sure about your 78 but in my 79 its a REALLY easy thing to check and/or replace...
you just reach up under your dash (it helps if your double jointed)and find the back of the speedo and grab the cable end there...on mine you give the clip a little squeeze and the cable will pop right out in your hand...
you can pull the inner cable out of the cable housing and see if it looks broken or messed up...it probably will :yesnod:
the new cable will come with the inner and the outer...
just push yours out thru the firewall and follow it down to the tranny and take it off there too...
replacing it is just doing it all again in reverse! :yesnod:
mine came dry...no lube inside it at all...
i pulled my inner cable out and coated it with white grease before installing it.
you just reach up under your dash (it helps if your double jointed)and find the back of the speedo and grab the cable end there...on mine you give the clip a little squeeze and the cable will pop right out in your hand...
you can pull the inner cable out of the cable housing and see if it looks broken or messed up...it probably will :yesnod:
the new cable will come with the inner and the outer...
just push yours out thru the firewall and follow it down to the tranny and take it off there too...
replacing it is just doing it all again in reverse! :yesnod:
mine came dry...no lube inside it at all...
i pulled my inner cable out and coated it with white grease before installing it.
