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2008 Yukon Denali vey rough misfire out of nowhere
My thought was that if I was having a misfire, it would cause the O2 sensor to be off. I do agree with you that it would be an easy step just to replace the O2 sensor and see what happens.- Drew1987gn
- Post #9
- Forum: Engine & Drivetrain
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2008 Yukon Denali vey rough misfire out of nowhere
Good morning! Even though my Yukon was misfiring and no check engine light on, I did drive home the next morning (about 2 miles). When I got home and backing up, the check engine light finally came on and was blinking. I shut her off and put my scanner on. 3 codes showed up. P0300 (misfire)...- Drew1987gn
- Post #6
- Forum: Engine & Drivetrain
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2008 Yukon Denali vey rough misfire out of nowhere
Hi to all. New to this forum and looking for some guidance. I have a 2008 Yukon Denali. Running fine then within a minute while drivIng it went from a little rough to an extremely bad misfire. Really popping through the exhaust. I had to pull into a parking lot and shut her off. Barely made it...- Drew1987gn
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- Replies: 11
- Forum: Engine & Drivetrain
