12-10-2012, 07:19 PM | #1 |
Registered User
Join Date: Nov 2012
Location: Loveland, CO
Posts: 3
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1972 gmc speedometer
On my 1972 gmc pickup, when its cold in the morning the speedometer makes a whirring sound and speeds up to anywhere from 60-80 mph when im only going about 35-40. I sprayed some zep lubricant in it and it doesnt whir as loudly anymore, but it still speeds up. Once the cab warms up it works fine. Anything in particular that could be causing this? Not a huge deal but just kind of annoying.
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