Author Topic: noise in speedometer?  (Read 2460 times)

Offline Smitty31

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  • 1979 GMC High Siera 4wd & 1986 custom deluxe 2wd
noise in speedometer?
« on: November 25, 2017, 10:41:53 AM »
Every since I bought this truck. [1986 Chevy c10 4.3 v6 A.T. transmission] I have heard a scrubbing noise the colder it is out side the worse it is. I first thought it was a front drivers side wheel bearing it was not. Then thought it was the exhaust it was not. I now believe it is either the speedometer or cable. At very low speeds it doesn't  make a sound. And on hot days it may start out noisy but as it warms up it fades away. should I oil the cable and speedometer and with what? I thought about white lithium grease in a spray but this to gets stiff in colder weather. Has anyone seen or heard of this with the speedometer or cable? If so what was the fix. Thanks Smitty31.
« Last Edit: November 25, 2017, 11:04:44 AM by Smitty31 »
IF ITS WORTH DOING. THEN ITS WORTH DOING RIGHT.

Offline bd

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Re: noise in speedometer?
« Reply #1 on: November 25, 2017, 11:00:24 AM »
Disconnect the speedometer cable from the transmission and go for a short drive to see if symptoms go away.  Speedometer cables are easy enough to lubricate.  See the first entry in Common causes of "bouncy" speedometer needles.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline Smitty31

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Re: noise in speedometer?
« Reply #2 on: November 25, 2017, 11:06:36 AM »
ok i will try that. Will it leak transmission fluid?
IF ITS WORTH DOING. THEN ITS WORTH DOING RIGHT.

Offline bd

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Re: noise in speedometer?
« Reply #3 on: November 25, 2017, 01:10:11 PM »
It won't leak fluid if you just disconnect the cable from the ratio adapter/transmission.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)