Chrysler 56029052AA Oxygen Sensor

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The upstream oxygen sensor is located on top of the exhaust manifold for 2.4L four-cylinder engines and on top of the rear exhaust manifold for 3.3L/3.8L V6 engines. The electrical lead should be traced and disconnected from the upstream oxygen sensor, and then the sensor can be unscrewed using a special oxygen sensor socket. After removing the old sensor, the threads of the sensor bore in the exhaust manifold should be cleaned. If reusing the old sensor, anti-seize compound should be applied to the threads for future removal. If installing a new sensor, anti-seize compound is not necessary as the threads already have it. The upstream oxygen sensor should be installed and tightened securely.

The process for replacing the downstream oxygen sensor is similar, with the sensor located on the side of the catalytic converter. The electrical lead should be traced and disconnected, and then the sensor can be unscrewed. The threads of the sensor bore in the catalytic converter should be cleaned, and if reusing the old sensor, anti-seize compound should be applied to the threads. If installing a new sensor, anti-seize compound is not necessary. The downstream oxygen sensor should be installed and tightened securely. The installation process is the reverse of removal for both sensors.

To replace the Throttle Position Sensor (TPS), follow the steps for replacement, including removal of the air cleaner assembly for the 2.5L engine, unplugging the electrical connector, removing the screws retaining the TPS, and reinstalling it securely.