2004 Chevy Silverado Irregular cruise control speed

2004 CHEVROLET SILVERADO
130,000 MILES • V8 • 4WD • AUTOMATIC
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Cruise control exhibits irregular speeds while engaged, it can vary 6-8 miles an hour, going up or down hills. Does the body control module control this? If I change it out with a used BCM will it affect any thing else, like speedometer readings or my odometer readout?
Apr 11, 2008 at 3:07 PM
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BLACKOP555
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does it stay the same on flat surface or does it varry 6-8 miles per hour?

it is normal for speed to varry going up hills especially steep ones.
Apr 12, 2008 at 9:37 AM
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