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How do you install an O2 sensor on a 2004 Chevy Trailblazer?

Anonymous

∙ 17y ago

Updated: 10/22/2022

There are multiple sensors on the vehicle. All are on the exhaust and are accessible from underneath the vehicle. They connect with a snap connector on the electrical wires, and the sensor itself is screwed into a half coupling that is welded onto the exhaust pipe.

Wiki User

∙ 17y ago

What else can I help you with?

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