Question about 1990 Chevrolet Corvette
The computer sees 900 rpm but the mech tach is reading 2500 rpm when 2000 real rpm is reached the mech tach is passed 8000 rpm
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Posted on Jan 02, 2017
there could be a bad connection between your dimmer switch and the lights themselves. often times through vibration and wear and tear the connectors degrade. check this first. also the dimmer switch itself could be the cause.check all the connections associated with the panel lights, look for loose wires and/or bad connections if there are none replace the dimmer switch
Posted on Apr 17, 2009
try changing the tach filter. Mine was located on the fire wall behind the distributor on a 1984 z28
Posted on May 05, 2009
HATE to be the bearer of potential bad news BUT , the C4 Vettes are notorious for having dash / instrument cluster woes .
Most likely , yours is a bad one .
Posted on Jun 13, 2009
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