2005 GMC Sierra Logo
jimmy nelson Posted on Mar 01, 2012
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Tachamererter intermit dont work - 2005 GMC Sierra

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ZJ Limited

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  • GMC Master 17,989 Answers
  • Posted on Mar 01, 2012
ZJ Limited
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Tachometer failures are very common on this brand. The tach will tend to hop around first and then just stop.
The most common failure for this concern is a faulty tach in the instrument cluster. This can be checked by using a scan tool to observe the instrument cluster data for the r.p.m. signal, if the scan tool shows a tach signal (RPM) signal then the instrument cluster isn't displaying this signal and is faulty and needs replaced or repaired.

Hope helps.

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