speedometer acts like a tach all of sudden

1994 CHEVROLET SUBURBAN
168,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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CHINGAMAN2001
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was wondering what would cause this
May 3, 2015 at 8:31 AM
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STRAILER
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It sounds like the gauge is going bad, this is common, it also could be the VSS located int he transmission tail housing.

Please let us know what you find

Best, Ken
May 3, 2015 at 10:16 AM