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2012 Yukon XL Denali temperature creeping up at idle only.
Hello everyone, former mechanic here. Truck is a 2012 Yukon XL Denali, AWD, 6.2L with just under 150k on the clock. Truck has been very well maintained. This issue has me completely stumped and I’m hoping for some validation before I spend more money throwing parts at it. Timeline/work completed...- ShakinNBakin663
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- Replies: 20
- Forum: Engine & Drivetrain
