1998 Chevy Cheyenne Speedometer & ABS

1998 CHEVROLET CHEYENNE
94,000 MILES • V8 • 4WD • MANUAL
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SMILING CRO
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  • 6 POSTS
My speedometer starts jumping suddenly and my truck want shift out of 1st gear also the service engine light is coming on occasionally aswell as the ABS light and my brakes feel real funny when these lights come on. Do you think it could be a sensor and if so wear is it located. Thanks:
Feb 15, 2008 at 12:37 PM
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2CARPRO JACK
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Could be the VSS (Vehicle speed sensor)For starters have the PCM (computer) scanned for codes, Autozone will do it for free. If the PCM sees a problem it will store a code that will help in diagnosing the problem, get back with the exact codes.If the PCM doesnt see the truck moving (speedo) it wont let the trans shift
Feb 16, 2008 at 7:14 AM