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GM and GMC

Where is the oxygen sensor 1992 GMC?


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You didn't state what engine but O2 sensors are located on the exhaust manifolds or headers. They are scewed into threads into the exhaust manifolds with a wire coming out of them and connecting to another electrical connection. Most vehicles have 1 or 2 but some have as many as 4. You probably only have 2 if you have a V8. A 4 cylinder usually only has 1