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2003 Yukon XL 2500 P 0300 Random Misfire & Torque Converter Lock up. FIXED!
New to the forum. I just went through a successful solution that was a P 0300 random misfire code preventing the transmission torque converter from locking up. History: I purchased this 2003 Yukon XL 2500 6.0 4L80E used with 200K on it. When I first looked at it, there was no engine light on...- KEI FABRICATION
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- Replies: 3
- Forum: Engine & Drivetrain
