The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-10-2012, 07:19 PM   #1
72gmcsupercustom
Registered User
 
Join Date: Nov 2012
Location: Loveland, CO
Posts: 3
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.
72gmcsupercustom is offline   Reply With Quote
Old 12-10-2012, 07:35 PM   #2
ole dollor
Registered User
 
ole dollor's Avatar
 
Join Date: May 2012
Location: Anton, Texas
Posts: 2,364
Re: 1972 gmc speedometer

welcome from Texas.. sounds like you need to undo the cable from your spedo. under the dash, then pull the cable out of the housing and gets some white grease like luberplate and lube the cable and put it back into the housing, and hook it back up and take it for a drive and see if this helps. most the time its just a dry spedo cable...
ole dollor is offline   Reply With Quote
Old 12-10-2012, 08:20 PM   #3
Ol Blue K20
Proprietor of Dale's Corner
 
Ol Blue K20's Avatar
 
Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,245
Re: 1972 gmc speedometer

I agree with dollar
__________________
"Some Days Chickens And Some Days Feathers"

Dale
XNGH ECV Sam Brannan 1004

R.I.P. 67ChevyRedneck
R.I.P. Grumpy Old Man
R.I.P. FleetsidePaul
Ol Blue K20 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:13 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com