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14 tahoe 4x4 poor fuel mileage help
I purchased a 2014 Tahoe 4x4 with the 5.3 and 6l80 transmission. Tahoe has 126k miles on it. Turned out that the engine was bad and so was the transmission. Did a complete rebuild on engine and also the transmission. With the engine had the heads redone at machine shop, full valve job and pac...- dirtymax6610
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- Replies: 3
- Forum: Engine & Drivetrain
