![]() ![]() Damaging or removing the pigtail or electrical connector will render the sensor useless.ī) Keep grease, dirt and other contaminants away from the electrical connector and the louvered end of the sensor.Ĭ) Do not use cleaning solvents of any kind on an oxygen sensor.ĭ) Oxygen sensors are extremely delicate. Be careful not to burn yourself during the following procedure.īe particularly careful when servicing an oxygen sensor and follow these guidelines:Ī) Oxygen sensors have a permanently attached pigtail and an electrical connector that cannot be removed. Rather than risk damage to the sensor or its mounting threads, start and run the engine for a minute or two, then shut it off. ![]() Note: Because it is installed in the exhaust manifold or pipe, both of which contract when cool, an oxygen sensor might be very difficult to loosen when the engine is cold. There is no set time when O2 sensor should be replaced, but 100,000 miles or 5 years is a good guideline, or when the check engine light indicates a fault. The oxygen (O2) sensor informs the engine computer how much free oxygen is in the exhaust, allowing it to judge exactly how much fuel to provide for best power, economy, and emissions. This page is taken from our digital online manual 38040 for the 2005-17 Chevrolet Equinox, 2010-17 GMC Terrain, and 2006-09 Pontiac Torrent, 2WD or 4WD with 4 cylinder or V6 engines. All Haynes Digital Online Manuals feature everything you love about our books in an instantly accessible digital online form, that you can use via any device with an internet connection.
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