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 contaminated, the portion ofthe sensor exposed to the exhaust stream will have a white powderycoating. Silicon contamination causes a high but false HO2S signalvoltage (rich exhaust indication). The control module will thenreduce the amount of fuel delivered to the engine, causing a severedriveability problem. Eliminate the source of contamination beforereplacing the oxygen sensor.
Collision Damage Repair
If the vehicle is involved in a
collision and it is damaged, have the
damage repaired by a qualified
technician using the proper
equipment and quality replacement
parts. Poorly performed collision
repairs diminish the vehicle resale
value, and safety performance can
be compromised in subsequ ...