Speedometer is not working

2001 CHEVROLET 3500
75,000 MILES • 8.1L • V8 • 2WD • MANUAL
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BOBBY BOOSHEA
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  • 1 POST
Was needing to know about the sensors on the side of the transmission. i have one on each side of it .
Feb 9, 2019 at 10:30 AM
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ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good afternoon,

The most common cause is the vehicle speed sensor.

Do you have an Allision transmission? The 8.1 offered this option.

Roy
Feb 9, 2019 at 12:50 PM
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ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Hello again,

I found this diagram for you.

Check it and see if you have this sensor at the rear of the transmission?

Roy
Feb 9, 2019 at 12:53 PM
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