Noisy Speedo - Impala Tech
Troubleshooting Diagnosing problems

 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 10-11-2018, 06:48 PM Thread Starter
Hal
Member
 
Join Date: Sep 2010
Location: USA
Posts: 65
 
Noisy Speedo

Every now and then I hear an annoying grinding sound and the speedometer needle on my '63 Impala starts jumping around wildly while driving. Then it returns to normal and the sound disappears. Could that be an indication that my speedometer cable is loose or beginning to fail or, perhaps, something worse down in the tranny?
Hal is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 10-11-2018, 07:21 PM
Moderator
 
Join Date: Jan 2006
Posts: 12,367
 
In the tranny no. In your speedometer cable, or the odometer itself, yes.

The speedometer cable is easy to pull, inspect, clean, and relube with dry graphite powder. The Odometer may require disassembly of the dash to get to, and a used one to replace it with, as I doubt you will find any one to repair what you have.

It could be the nylon plastic gear set in the transmission that drives the cable that is going bad; as plastic does wear. You can replace them with aluminum gears out of a pick-up truck or another set of plastic ones but it requires removing the tail housing to get to the drive gear.

Big Dave
Big Dave is online now  
post #3 of 4 (permalink) Old 10-12-2018, 03:08 PM Thread Starter
Hal
Member
 
Join Date: Sep 2010
Location: USA
Posts: 65
 
Thanks Big Dave!
Hal is offline  
 
post #4 of 4 (permalink) Old 10-13-2018, 10:52 AM
Senior Member
 
Join Date: Dec 2012
Location: virginia
Posts: 344
 
Dave hit all the likely offenders. Your symptoms point to a 'lub' problem. As Dave said, lub with the graphite.
japete92 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Impala Tech forums, you must first register.
Please enter your desired user 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:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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

 
For the best viewing experience please update your browser to Google Chrome