A strong odor of natural gas may be detected from inside the vehicle, possibly accompanied by a hissing noise. If the natural gas were accidentally ignited, serious injury could result.
Some 2wd and 4WD pickup trucks, converted to either dedicated or bi-fuel compressed natural gas (CNG) fuel usage, were assembled with a throttle cable that can contact and rub through the flexible pressurized fuel line creating a pinhole leak of natural gas to the atmosphere.
Dealers will secure the throttle cable to eliminate the possibility of contact with the CNG fuel line. The CNG fuel line, throttle cable, and cruise control cable are also to be inspected and replaced if necessary. Owner notification began on December 11, 2003. Owners should contact Chevrolet at 1-800-630-2438 or GMC at 1-866-996-9463.
