Speedometer Noise/Irratic bouncing - Impala Tech
Troubleshooting Diagnosing problems

 
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post #1 of 4 (permalink) Old 03-03-2010, 04:43 PM Thread Starter
 
 
Join Date: Feb 2010
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Speedometer Noise/Irratic bouncing

My Speedometer was going crazy...making noise, needle bouncing. So I pulled the entire cable out with sheath. I pulled out the cable, but noticed it was curled at the tranny link. So I tried to straighten it to pull the cable through. I cleaned the cable and sheath, re-lubed and put it back in. Now it does not work? Is it supposed to be perfectly straight on the tranny end? Thanks!
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post #2 of 4 (permalink) Old 03-03-2010, 07:09 PM
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speedometer cable

Quote:
Originally Posted by Biscayne 61 View Post
My Speedometer was going crazy...making noise, needle bouncing. So I pulled the entire cable out with sheath. I pulled out the cable, but noticed it was curled at the tranny link. So I tried to straighten it to pull the cable through. I cleaned the cable and sheath, re-lubed and put it back in. Now it does not work? Is it supposed to be perfectly straight on the tranny end? Thanks!
THe transmission end of the cable should be formed to a square shape for an inch or so, if it was kinked and sometimes worked the drive gear shaft may be worn out and the kink was an atemp to get it to drive the cable.
If the cable looks good on the end and turns free check the gear, may need to look at the drive gear inside the tranny also. Spin the cable by hand and see if the speed o needle moves also.

Robin
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post #3 of 4 (permalink) Old 03-03-2010, 09:04 PM
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Speedometer Cable

Once you do get it going again keep in mind that one reason for the jumpiness and the needle going back and forth is due to dirt in the sleeve and/or build up of grease. After you have thoroughly cleaned out the sleeve you should only use graphite to lube the inner cable.

Paul

Paul

1966 Impala SS

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post #4 of 4 (permalink) Old 03-05-2010, 11:36 AM Thread Starter
 
 
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Thanks! I cleaned the sheath, replaced the cable and re-lubed and she works great!
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