Silicon Contamination of Heated Oxygen Sensors Caution

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Caution:

Contamination of the oxygen sensor can result from the use of an inappropriate RTV sealant (not oxygen sensor safe) or excessive engine coolant or oil consumption. Remove the HO2S and visually inspect the portion of the sensor exposed to the exhaust stream in order to check for contamin...

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Document Title: Silicon Contamination of Heated Oxygen Sensors Caution

contamination

oxygen

sensor

exhaust

sensor exposed exhaust

exposed exhaust stream