oxygen sensors

1998 CHEVROLET TRUCK
200,000 MILES • V8 • 4WD • AUTOMATIC
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JOHN STAGGS
  • MEMBER
  • 1 POST
How many oxygen sensors are there on this truck and where are they at?
Jan 21, 2008 at 6:50 PM
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BLACKOP555
  • CAR REPAIR CONTRIBUTOR
  • 10,386 POSTS
the o2 sensors are located on the exhaust manifold before the catalytic convertor(s) you may also have some located after the catalytic converter for catalyst efficiency. Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor


Check out the diagrams (Below). Please let us know what happens.
Jan 21, 2008 at 9:19 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.