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03-15-2010, 09:54 PM
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#1 |
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Registered User
Join Date: Nov 2001
Location: Eatonton, GA, USA
Posts: 191
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Bouncing speedo needle
I have an 81 4x4 and the speedo needle bounces until it gets up to hwy speed and it reads about 15 to 20 mph fast. I"m running stock heigth tires. Can anyone tell me how to stop the bouncing and make it show the correct speed?
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03-15-2010, 09:59 PM
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#2 |
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Senior Member
Join Date: Nov 2003
Location: Brookings, SD
Posts: 10,497
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Re: Bouncing speedo needle
The bouncing is almost always caused by a dry cable. Lube the cable up as best you can and see if that works. Sometimes you can actually pull the whole cable out of the sleeve, lube it up, and put it all back together.
It could solve the problem with it being off, but if it's still of when it doesn't bounce anymore, you will probably need a new gear for the transfer case. It's a pretty easy fix.
__________________
Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs. |
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03-16-2010, 03:13 PM
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#3 | |
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Registered User
Join Date: May 2009
Location: Florida
Posts: 20
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Re: Bouncing speedo needle
Quote:
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03-16-2010, 03:17 PM
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#4 |
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Registered User
Join Date: Nov 2008
Location: edmonton, alberta
Posts: 293
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Re: Bouncing speedo needle
You might have in issue with the gears in the transmission. I replaced mine for that same reason (2wd) and it still bounces. I am leaking trans oil from that spot though and I know there's worn out parts back there cause it doesn fit well anymore.
__________________
 76 Silverado, 2wd, long box, 350/th350, 3.42 posi, edelbrock performer 64cc heads, edelbrock 1405, 2101 intake, Hedman Headers, Comp Cam XE262 http://beerbreadbike.wordpress.com/ |
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03-16-2010, 07:12 PM
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#5 |
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Another Day, Another Dollar
Join Date: Nov 2008
Location: North Vancouver, BC
Posts: 1,316
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Re: Bouncing speedo needle
man, mine does it too (sometimes)
i will be ripping down the highway and my speedo starts going ape! after a few clicks it usually resumes normal function
__________________
-78 K20 Cheyenne 454 long box, 4" lift, 35" MT's, '84 cab, '80 box "its hip to be square" 
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03-17-2010, 07:58 AM
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#6 |
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Registered User
 
Join Date: Apr 2005
Location: Medford, MA
Posts: 307
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Re: Bouncing speedo needle
+1 for the speedo cable. Check it for any sharp bends, adjust the routing as straight as possible, lube, and if all that doesn't help, replace.
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