Sppedometer Cable/Connection
Thread Starter
Drifting
Joined: Aug 2004
Posts: 1,763
Likes: 0
From: Fayetteville NC
Sppedometer Cable/Connection
In the past, the speedometer on my stock '75 would work intermittently. Even when it wasn't working, it would read something, never zero. I decided to get under the car a few weeks ago and "fix it".
I unscrewed the cable where it goes into the transmission and re-inserted it. Now it doesn't work at all. Need to find out what I did wrong. Is it not tight enough? Not able to use a wrench. Have to use plyers to tighten it back. There's a U-shaped piece right where the cable screws in that might be out of place since I messed with it. Is there a certain position this needs to be in? Why is it there? What does it do?
Thanks.
I unscrewed the cable where it goes into the transmission and re-inserted it. Now it doesn't work at all. Need to find out what I did wrong. Is it not tight enough? Not able to use a wrench. Have to use plyers to tighten it back. There's a U-shaped piece right where the cable screws in that might be out of place since I messed with it. Is there a certain position this needs to be in? Why is it there? What does it do?
Thanks.
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 441
From: Wellington, FL
St. Jude Donor '11 thru '25
I would remove the cable for a look at its condition. This must be done from behind the dash. 
http://www.corvettemagazine.com/2000...le/speedp1.asp
http://www.corvettemagazine.com/2000...le/speedp1.asp
Instructor
Joined: Dec 2006
Posts: 132
Likes: 0
From: Virginia Beach, VA
I had the exact same problem on my 71 AT - was afraid I needed to rebuild the speedometer itself because of strange noise coming from there. The cable looked fine.
However, I chose to install a new cable as a first step and -- bingo. Now I got a smooth going speedometer.
So, my advice is for you to take the simple step of installing a new cable and see if that helps you.
However, I chose to install a new cable as a first step and -- bingo. Now I got a smooth going speedometer.
So, my advice is for you to take the simple step of installing a new cable and see if that helps you.
