Where Is the Location of the Bank 2, Sensor 1 O2 Sensor on a 2003 Jeep Liberty?

Removing the oxygen sensor requires a special slotted socket.

The oxygen sensor in the Jeep Liberty is part of the emissions control system. Oxygen in the exhaust gasses interacts with elements inside the sensor to generate a small voltage output. The Powertrain Control Module uses this information to regulate the Jeep's air-to-fuel mixture.

The Sensors

On the 2.4 liter engine there are two sensors -- one in front of the catalytic converter and one after. On the 3.6 liter V6 there are four -- two on each exhaust bank.

Sensor Locations

Bank one sensor one is on the left side of the engine. Bank two sensor one is on the right side of the engine. Pre-converter sensors are installed into the exhaust tube between the exhaust manifold and the catalytic converter.

Replacing the Sensors

The sensors have an electrical connector that must be disconnected prior to removal. A special slotted socket wrench available from an auto parts store is used to remove and replace the oxygen sensor.

References

• "Jeep Liberty 2002-04 Repair Manual"; Len Taylor and Tim Imhoff; 2004