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Ecklers AutoMotive
Username Post: Bouncing Speedometer        (Topic#356352)
ChipB 
Poster
Posts: 7

Age: 62
Reg: 03-13-19
05-09-19 12:28 PM - Post#2766029    

The speedometer in my 1962 C10 works fine about half the time. The other half the time, it makes a grinding noise and the needle bounces around. Often when bouncing it only bounces about 10mph either way. But sometimes, it will bounce all over the speed range. (From 0 to 80 or 90 when doing only 35mph) The noise sounds like it is coming from under the dash or in the dash itself. (Hard to tell because I'm always driving when it happens.) Has anyone experienced a similar problem? I'm guessing the easiest thing to do is replace the speedometer cable. If that's not it any ideas?



 
Ecklers AutoMotive
GreatNorthWoods 
"5th Year" Silver Supporting Member
Posts: 956
GreatNorthWoods
Age: 76
Loc: Littleton, New Hampshire,...
Reg: 03-31-02
05-10-19 04:10 AM - Post#2766078    
    In response to ChipB

  • ChipB Said:
The speedometer in my 1962 C10 works fine about half the time. The other half the time, it makes a grinding noise and the needle bounces around. Often when bouncing it only bounces about 10mph either way. But sometimes, it will bounce all over the speed range. (From 0 to 80 or 90 when doing only 35mph) The noise sounds like it is coming from under the dash or in the dash itself. (Hard to tell because I'm always driving when it happens.) Has anyone experienced a similar problem? I'm guessing the easiest thing to do is replace the speedometer cable. If that's not it any ideas?



Sounds like the cable needs lubrication or replacement. Try removing the cable and coat it with graphite (speedometer lube). Make sure the cable housing isn't kinked anywhere. If lubrication doesn't correct it, replace the cable. Last resort is replacing the speedometer head if the cable isn't the problem.









Vern

1953 Chevy Belair Sport Coupe - 355 Blueprint Engine, 700-R4, Vintage Air, EZ Wire, Ididit column, Cruise/Tilt, 59 Vette Steering Wheel, 4-Wheel Disc Brakes, Posies Springs, Coker Radials, Nova 10-bolt, Mustang II front, Continental Kit


 
Ecklers AutoMotive
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