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Broken speedometer #2524303
07/19/18 11:40 PM
07/19/18 11:40 PM
Joined: Jul 2013
Posts: 21
USA
Z
z70dodge Offline OP
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z70dodge  Offline OP
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USA
My speedometer makes a grinding howling sound when you get above 10mph and then the needle fluctuates. How should I go about fixing it. 1970 dodge challenger

Re: Broken speedometer [Re: z70dodge] #2524305
07/19/18 11:44 PM
07/19/18 11:44 PM
Joined: Jan 2003
Posts: 29,648
Hamtramck, PA
Alaskan_TA Offline
Fluffy Balladeer
Alaskan_TA  Offline
Fluffy Balladeer

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Posts: 29,648
Hamtramck, PA
The cable not be fully engaged in the speedometer head?

Try this........

Take it loose at the transmission.

Spin the inner cable slowly by hand while pushing it upwards.

Re-attach to the transmission pinion & check it.

Re: Broken speedometer [Re: Alaskan_TA] #2524308
07/19/18 11:48 PM
07/19/18 11:48 PM
Joined: Jul 2013
Posts: 21
USA
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z70dodge Offline OP
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USA
Ok I will try thanks! It always worked....but the car sat for a year or so without being touched. The first time I tried it out after sitting it acted up

Re: Broken speedometer [Re: z70dodge] #2524320
07/20/18 12:30 AM
07/20/18 12:30 AM
Joined: Jan 2003
Posts: 32,883
Grand Prairie,Texas
stumpy Offline
I Win
stumpy  Offline
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Grand Prairie,Texas
If that doesn't work try removing the cable core from the speedo end of the cable housing and lubing it. I use a very thin coat of either white lube or Vaseline

Re: Broken speedometer [Re: stumpy] #2524335
07/20/18 01:32 AM
07/20/18 01:32 AM
Joined: Mar 2008
Posts: 9,550
Sacramento CA
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Morty426 Offline
master
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Sacramento CA
Originally Posted By stumpy
If that doesn't work try removing the cable core from the speedo end of the cable housing and lubing it. I use a very thin coat of either white lube or Vaseline


I'm beating on this one up

Re: Broken speedometer [Re: z70dodge] #2524798
07/20/18 11:39 PM
07/20/18 11:39 PM
Joined: Jul 2013
Posts: 21
USA
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z70dodge Offline OP
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Ok thanks!

Re: Broken speedometer [Re: z70dodge] #2524829
07/21/18 12:54 AM
07/21/18 12:54 AM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
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Posts: 36,040
Lincoln Nebraska
You might spin the cable with a reverseable drill (CCW) & see what develops.


live every 24 hour block of time like it's your last day on earth
Re: Broken speedometer [Re: z70dodge] #2529934
08/01/18 12:34 PM
08/01/18 12:34 PM
Joined: Aug 2005
Posts: 43
Sahuarita, Arizona
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ChuxGTX Offline
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ChuxGTX  Offline
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Joined: Aug 2005
Posts: 43
Sahuarita, Arizona
I had this happen on a motorcycle and it was due to the cable not being lubricated. It ended up trashing my speedo.







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