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2005 Yukon XL Denali 6.0 P0300 Code Suggestions?
Thanks for the responses so far. So I do not have the log data due to the limitations of my old OBD code scanner, but am getting a more advanced one today. I'll post that when able. I cleared two more P0300 codes this weekend, and the freeze frame numbers were almost identical to those posted...- JimmyP
- Post #5
- Forum: Engine & Drivetrain
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J
2005 Yukon XL Denali 6.0 P0300 Code Suggestions?
My 2005 Yukon XL Denali, 6.0, 160k, throws a persistent and recurring p0300 code. It consistently stumbles and shifts hard in low gear, runs and shifts smoothly in higher gear, but code P0300 appears at 60-70 mph without fail after clearing it. There have not been any other codes. I have...- JimmyP
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- Replies: 6
- Forum: Engine & Drivetrain
