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Overdrive light flashing off

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Old May 15, 2009 | 09:51 AM
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mrfixit290
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Overdrive light flashing off

The other day my ck engine light came on then a couple of days later I notice that the overdrive light started to flash off. The light flashed for about 15-20 min then went to off. When I turned the truck off it went back to the on position and no other problems. also when I put the computer on the truck it gave a code for "speed sensor detecting over one mph variance" dont have the exact code. what could this be


btw 2000 v10
 
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Old May 15, 2009 | 03:13 PM
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You could pull the VSS (Vehicle Speed Sensor) from atop the rear diff and inspect for any metal fragments that may be on it.

How's your tire pressures?
 
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Old May 17, 2009 | 07:10 PM
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mrfixit290
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UPDATE:

Okay I have the code in the computer says, output speed sensor insufficient input...

also when the overdrive light starts to flash off if i put truck in park it starts to rev from 500 rpm to about 900 rpm up and down...
 
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