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6.9 speedo needle bouncing

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Old Feb 6, 2014 | 08:42 PM
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6.9 speedo needle bouncing

My speedometer needle keeps surging any ideas ?
 
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Old Feb 6, 2014 | 09:48 PM
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Originally Posted by Hughesjr84
My speedometer needle keeps surging any ideas ?
The grease in them gets old and sticks, makes the speedo jumpy like that. Usually worse when it's cold, better as it warms up.

Going to send mine out for an overhaul one of these days.
 
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Old Feb 7, 2014 | 05:10 AM
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What causes the speedometer to register faster than what you are traveling. It becomes more accurate after the truck warms up.

The other day I look down and the darn thing said I was doing 90mph. Maybe I was actually going 55?
 
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Old Feb 7, 2014 | 08:35 AM
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Same thing, the old grease. I've never found a home remedy for it myself, I tried WD40 once to free up the old grease, but apparently some restriction is necessary. With the WD it spun crazy high.
 
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Old Feb 7, 2014 | 08:13 PM
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I put a new cluster in it it has a tach now also just gotta find a way to turn the millage to the same
 
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