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Missing O2 Sensors
I wonder why someone would do that. Kind of weird.- orhuntnfish
- Post #3
- Forum: Engine & Drivetrain
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Missing O2 Sensors
Well this is a new one to me. I got the part numbers from the dealer for all 4 O2 Sensors. I have a 2002 Yukon XL SLT 8.1L 4X4. The dealership and All Data both say there are 4 sensors. But there are only 2. The ones there are both upstream. The ports on the exhaust for down stream are plugged...- orhuntnfish
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- Replies: 6
- Forum: Engine & Drivetrain
