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SERVICE ENGINE LIGHT NOT COMING ON. NEED A PLACE TO START CHECKING.
The Check Engine Light illuminates when there is a problem detected in the Emission Control System on your vehicle. Learn more here; http://repairpal.com/check-engine-light
Common Problems > GMC Sierra 1500
Q&A > GMC > 2001 GMC Sierra 1500
Q&A > GMC > 2003 GMC Sierra 1500