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Speedometer check

Tiny
MICHAELESTYONS
  • MEMBER
  • 2005 CHEVROLET TAHOE
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
How to check speed sensor?
Thursday, July 26th, 2018 AT 7:13 AM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

You will need a scan tool that can read live data. You will need to see if the sensor is sending a signal to the PCM.

A code reader will not work. You need an advanced scan tool to read live data.

Do you have a scan tool?

Is the check engine light on?

Roy
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Thursday, July 26th, 2018 AT 7:25 AM
Tiny
MICHAELESTYONS
  • MEMBER
  • 3 POSTS
Do not have a scan tool, no engine light.
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Thursday, July 26th, 2018 AT 7:46 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, if your speedometer is not working and the check engine light is not on, then there is a signal to the PCM. That means your issue is in the dash cluster itself.

It would have to be removed and can be sent out to be repaired.

Roy
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Thursday, July 26th, 2018 AT 7:58 AM
Tiny
MICHAELESTYONS
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  • 3 POSTS
Thanks.
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Thursday, July 26th, 2018 AT 9:02 AM
Tiny
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  • MECHANIC
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You are welcome.
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Thursday, July 26th, 2018 AT 9:04 AM

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