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Reduced engine power no DTC code
So here's the deal, I have a 2012 Yukon Denali. It has had a lifter and cam swap, head studs, and long tube headers. I bought it like that and don't know the owner that done the mods. I bought it from a friend of mine that owns a used auto lot and he had the issue looked at by several garages...- travstick
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- Replies: 20
- Forum: Engine & Drivetrain
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Looking to buy 2013 yukon denali
Hello, I'm looking at a 2013 yukon with the 6.2 engine. I have recently test drove a 2012 yukon denali, for several weeks, that belongs to my boss. He owns a used car sales. The 12 model has the afm deleted with long tube headers, head studs, and what seems like aftermarket cam. It runs good...- travstick
- Thread
- Replies: 15
- Forum: General Discussion
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Reduced engine power without cel
Hello, new member, first post. Lokor help. I have a 2012 yukon denali 6.2. It's new to me so I don't know much about its past. The problem I have is with reduced engine power, some times when I start to pull out from a stop it will go into reduced engine power but it never has check engine...- travstick
- Thread
- Replies: 25
- Forum: Engine & Drivetrain
