02 sensors

Asked by GuruNCZ77 Oct 26, 2019 at 10:14 AM about the 2004 Chevrolet Silverado 1500

Question type: Maintenance & Repair

i ordered a set of sensors on e bay ...how do you tell wich ones are the upstream and wich ones are the down
stream ?

3 Answers
41,170

TDolby answered 5 years ago

Looking up the O2 sensors for your model vehicle, the upstream and downstream sensors can be interchangable.

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