09-03-2009, 10:31 AM | #1 |
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Join Date: Apr 2009
Location: houston texas
Posts: 1,438
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speedo stuck
my speedometer sticks at 30 mph. it will go up to 30and just hangs there. when i park the truck it remains stuckon 30. i can tap on the back of speedo while parked and it will drop back down but the next time i drive it the same thing happens.the truck is a 1968 cst.i have tried to post pictures but it will not work. i have posted other pictures in truckes for sale but it will not work here any help is appreciated
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09-03-2009, 10:49 AM | #2 |
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Location: daytonabeach
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Re: speedo stuck
step one//take out and clean and lubricate the speedo cable with speedometer cable lube NOT WHITE GREASE
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09-03-2009, 10:49 AM | #3 |
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Location: Salina, Kansas
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Re: speedo stuck
id get a new speedo cable they are cheap.. maybe the speedo itself is bad? or maybe the thing on the tranny is broke
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1972 C-10...402/400..flowmaster 40 series 1967 Mustang 347 stroker/C-4 1966 Mustang 289/3-speed 2013 Mustang V6/6speed w/300 ponies I may be 23, but i sure do knows 67-72s are sexy! Its not MPG its smiles per gallon! build started 11/25/08 build thread: http://67-72chevytrucks.com/vboard/s....php?p=2993796 |
09-03-2009, 12:03 PM | #4 |
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Re: speedo stuck
Wouldn't hurt to lube the cable but the cable just turns a magnet that produces a magnetic field that move the needle. Eddie currents.
More than likely you have a bad speedometer. Maybe taking it out, checking the connections, making sure the needle is not loose, etc. may help, but I would start looking for another one. |
09-03-2009, 01:01 PM | #5 | |
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Re: speedo stuck
Quote:
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09-03-2009, 02:56 PM | #6 |
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Join Date: Apr 2009
Location: houston texas
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Re: speedo stuck
thank for the input. i took the instrument cluster out and cleaned it &painted it. iput led bulbs in.when i reinstalledit is when this problem came up, itwas working brfore i took it out.
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09-03-2009, 03:01 PM | #7 |
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Location: houston texas
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Re: speedo stuck
i just read my post. i can spell good but cant type worth a ......
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09-03-2009, 03:11 PM | #8 | |
70 Chevrolet=Obsession
Join Date: Jun 2009
Location: nice ca
Posts: 1,067
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Re: speedo stuck
Quote:
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I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner) |
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09-03-2009, 04:19 PM | #9 |
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Join Date: Apr 2009
Location: houston texas
Posts: 1,438
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Re: speedo stuck
ok i think i will take it back out . i have a 72 parts truck. does anbody if the 72 speedo is the same as the 68?
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09-03-2009, 04:29 PM | #10 |
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Location: Centrally located between Houston, Austin and Waco. BCS area.
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Re: speedo stuck
Should all be the same. I think I took the one for my 69 out of a 72 GMC.
You'll probably see if there's any differences when you take them out and compare. |
09-03-2009, 04:30 PM | #11 |
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Join Date: Dec 1999
Location: Yuba City Ca.
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Re: speedo stuck
Did you pack the cable with grease? I over lubed a cable once and the grease got into the speedo head and acted the same way. Yes the 1968 unit will work.
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09-04-2009, 12:07 AM | #12 |
70 Chevrolet=Obsession
Join Date: Jun 2009
Location: nice ca
Posts: 1,067
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Re: speedo stuck
According to my catalogs they all list the same replacement speedo for years 1967-72 and they're about $75.00.
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I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner) |
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