U.S.: 1-800-243-8872
TTY Users (U.S. Only): 1-888-889-2438
Canada: 1-800-268-6800
New Chevrolet owners are automatically enrolled in the Roadside Assistance Program.
See Roadside Assistance Program.
Diesel Exhaust FluidSilicon Contamination of Heated Oxygen Sensors Caution Engine Control Engine Control Sensors O2 Sensors
Caution:Contamination of the oxygen sensor can result from the use ofan inappropriate RTV sealant (not oxygen sensor safe) or excessiveengine coolant or oil consumption. Remove the HO2S and visuallyinspect the portion of the sensor exposed to the exhaust stream inorder to check for contamination. If ...