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  #1  
Old 08-14-2015, 02:38 PM
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Odometer running fast

My odometer started running about double time yesterday. Clocking up the miles quickly at this rate. Anyone had this issue before? 91 350SDL. I've replaced the gears in the past and haven't had any trouble with it lately.
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Old 08-14-2015, 05:13 PM
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Odd. Be sure and post what the issue turns out to be.
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Old 08-14-2015, 05:39 PM
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Ok. I took out the dash and oiled the gears - didn't change anything.
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Old 08-14-2015, 05:40 PM
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I believe a 126 is an electronic pickup on the tranny. i would start there.
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Old 08-14-2015, 06:14 PM
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The speed is correct on the speedometer. Just the odometer is in turbo mode. Wouldn't they both be effected if the speed sensor were bad?

QUOTE=Wodnek;3508879]I believe a 126 is an electronic pickup on the tranny. i would start there.[/QUOTE]
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Old 08-14-2015, 06:46 PM
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The 126 odometer is gear driven. Likely a gear has slipped into the wrong position.

This link may be helpful. How to repair your odometer for pocket change
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Old 08-15-2015, 09:14 AM
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Quote:
Originally Posted by krwsenior View Post
The speed is correct on the speedometer. Just the odometer is in turbo mode. Wouldn't they both be effected if the speed sensor were bad?

QUOTE=Wodnek;3508879]I believe a 126 is an electronic pickup on the tranny. i would start there.
[/QUOTE]

Ah.... missed that.
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  #8  
Old 08-15-2015, 02:13 PM
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Fixed it - Gear was bad

One of the gears had a tooth missing. That is all I could find wrong and it really doesn't explain why it ran fast. I replaced it and now it works fine. I just happened to have the gear I needed in my left over parts from fixing the non-working odometer a year or two back. All is well.
Thanks for the help!!
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