Owner Checks and Services: Notes
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
This information is supplemental to the gasoline service manual information. Refer to the gasoline service manual for additional information.
Listed below is a check that should be performed at EACH CNG fuel fill to help ensure the safety, dependability, and emission performance of the vehicle.