what i can do. my truck turns a light on REDUCE POWER ENGINE on 2003 GMC Sierra 1500

I have turn off the motor and restarting the engine

by in Bakersfield, CA on March 27, 2013
2 answers
ANSWER by on March 27, 2013
your sensors telling you there is a prob. get diagnostic run to find out what it is. might be easy fix now or big fix later. best to find out.
ANSWER by on March 28, 2013
have codes scanned and post so we can adv