FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.
Home >> Mercury >> 1997 >> Grand Marquis V8-4.6L VIN W >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Sensors and Switches - Computers and Control Systems >> Oxygen Sensor >> Service Precautions

Oxygen Sensor: Service Precautions

When servicing exhaust system or removing exhaust components, disconnect all Heated Oxygen Sensors (HO2S) at the wiring connectors to prevent damage to the heated oxygen sensors and wiring harness.
pro multis Credits:Operation CHARM About Operation CHARM