Q: How to Service the Heated Oxygen Sensors on Ford Escort?
A: Service of the Heated Oxygen Sensor (HO2S) begins by disconnecting the battery ground cable. The first step involves disconnection of HO2S electrical connector followed by removal of the HO2S. Reverse the steps to install the component after service completion. A clear view exists because the exhaust manifold heat shield is omitted.
A: Vehicle service of the oxygen sensor begins by supporting it in a raised position. First disconnect the electrical connector of the catalyst monitor sensor then proceed with sensor removal. When installing the sensor use the opposite order of removal steps.