OEM 2001 Cadillac Catera Oxygen Sensor

2001 Cadillac Catera Parts Questions & Experts Answers

• Q: How to replace the Heated Oxygen Sensor (HO2S) on 2001 Cadillac Catera?

  A: First commencing the work start by turning OFF the ignition and then raise and support the vehicle. After disconnecting the sensor harness connector handle oxygen sensors gently to avoid damage while keeping both inspection ports free of potential contaminants. The sensor removal process becomes simpler at engine temperatures above 48°C (120°F) but the practice of repairing oxygen sensors is not appropriate instead replacement should be performed. Application of the Heated Oxygen Sensor Wrench (J 39194) will enable removal of the defective oxygen sensors. The replacement targets Bank 1 sensor 2 , Bank 1 sensor 1 , Bank 2 sensor 1 , and Bank 2 sensor 2 . Every new oxygen sensor requires special anti-seize compound on the threaded parts or consult GM P/N 5613695 for an equivalent alternative. The installation of new service sensors includes pre-applied anti-seize compound but reused oxygen sensors need application of GM P/N 5613695 or equivalent compound before installation. Apply 30 N.m of torque (22 lb ft) when installing Bank 1 Sensor 2 , Bank 1 Sensor 1 , Bank 2 Sensor 1 , and Bank 2 Sensor 2 heated oxygen sensors. All harness connections to hot exhaust components must be avoided while properly flattening the connector seal over its complete circumference before sensor pigtail attachment to the harness. After following these instructions you should connect the sensor harness and lower the vehicle.