Trooper S V6-3.5L (1998)
Oxygen Sensor: Service and Repair
Removal Procedure
1. Disconnect the negative battery cable.
2. Locate the four oxygen sensors.
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Automatic transmission model
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Manual transmission model
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Bank 1 sensor 1 is mounted on the exhaust pipe ahead of the right-hand catalytic converter.
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Bank 1 sensor 2 (automatic transmission only) is mounted behind the right-hand catalytic converter.
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Bank 1 sensor 2 (manual transmission) (2) is mounted between the exhaust tee and the catalytic converter.
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Bank 1 sensor 3 (manual transmission) (4) is mounted behind the catalytic converter.