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Old Jun 14, 2004 | 04:46 PM
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Speedometer jitters

I find my speedometer jitters or bounces up and down at slow speeds. Does anyone know why? I have a 1980 Bronco.

Darryl
 

Last edited by dazman; Jun 14, 2004 at 05:11 PM.
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Old Jun 14, 2004 | 05:14 PM
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If your Bronco has a speedometer cable chances are that it needs some grease. The cable is rubbing against the sleeve causing the needle to bounce up and down. There is an adapter for the end of the cable so you can put a grease gun to it. I don't know where the adapter is sold but maybe a transmission place will have it.

Warr
 
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Old Jun 14, 2004 | 05:17 PM
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Thanks Warr, does the cable go ito the transfer case or transmission?

Darryl
 
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Old Jun 14, 2004 | 05:27 PM
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I see it is the transmission. I just had the clutch changed and it didn't bounce before.
 
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Old Jun 14, 2004 | 05:34 PM
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Try to get some grease in the cable and that should solve the problem. If you can remove the speedo cable so you can see how much grease is going in. You don't want to put too much grease.

Warr
 
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Old Jun 14, 2004 | 05:35 PM
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I take it it is easy to remove? I do all my own maintenance.

Darryl
 
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Old Jun 14, 2004 | 05:47 PM
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Not too bad to do, you'll have to loosen the instrument cluster and right behind the speedo gauge the cable is held in by a clip or threaded on. Not too sure but it's one or the other.

Warr
 
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Old Jun 14, 2004 | 05:50 PM
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Oh, I've had that off before. I thought it had to be disconnected from the tranny.

Darryl
 
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Old Jun 14, 2004 | 05:54 PM
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No you're right, you can put grease on the tranny side. Sorry about that, haven't worked on a speedo cable for awhile. All these newer vehicles are running vehicle speed sensors.

Warr
 

Last edited by bronco5.8; Jun 14, 2004 at 05:58 PM.
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Old Jun 14, 2004 | 06:47 PM
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Just went out and pulled the speedo cable right out and greased it. Took it for a test drive and it is all nice and smooth now.

Thanks for all your help

Darryl
 
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Old Jun 14, 2004 | 06:56 PM
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If it have no grease fitting then just pull the cable out and pack grease in to the tube with the line , also, on 4wds the cable goes into the t-case. A 2wd tranny tailshaft has the spot for the speedo, but a 4wd tailshaft has nothing.
 
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Old Jun 15, 2004 | 06:33 PM
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Darryl, that's good news to hear with your problem solved.

Warr
 
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Old Jun 15, 2004 | 06:35 PM
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Thanks again!
 
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