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#1 |
Registered User
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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#2 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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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
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#3 |
Registered User
Join Date: Jul 2007
Location: Salina, Kansas
Posts: 1,998
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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 |
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#4 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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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. |
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#5 | |
Registered User
Join Date: Dec 2006
Location: Porter Ranch, CA
Posts: 978
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Re: speedo stuck
Quote:
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#6 |
Registered User
Join Date: Apr 2009
Location: houston texas
Posts: 1,438
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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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#7 |
Registered User
Join Date: Apr 2009
Location: houston texas
Posts: 1,438
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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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#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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#9 |
Registered User
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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#10 |
Active Member
![]() Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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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. |
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#11 |
member #16
![]() Join Date: Dec 1999
Location: Yuba City Ca.
Posts: 3,618
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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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john http://67-72chevytrucks.com/vboard/showgroups.php board vendors ![]() http://www.flickr.com/photos/1745471...7602865984234/ |
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#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.
__________________
![]() ![]() ![]() 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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