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Cylinder Deactivation Failure
My 2021 Denali 6.2 4 x 4 (13,500 miles)was in the shop for 4 weeks earlier in the year waiting on a fuel pump module. Now it is the shop again for a minimum of 10 days because the cylinder deactivation systlem failed. It is getting new lifters and a head gasket which interesting enough is on...- RonLC
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- Replies: 2
- Forum: Engine & Drivetrain
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2021 Yukon Denali 4x4 Fuel Module Backorder
My vehicle with 11,000 miles has been at the dealership for over a week waiting on a fuel module. 8-10 other similar vehicles are sitting there waiting on the same thing. Dealer said March 23 might be when it is fixed. What's going on?- RonLC
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- Replies: 4
- Forum: Engine & Drivetrain
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Must Be Running to go to Neutral
My 2021 Yukon Denali 4 x4 must be running to shift into Neutral. Found out the hard way when it would not start because of a faulty fuel pump module while parked nose to wall in my condo parking spot. We have 4 floors with three living floors above parking garage. Called road service and they...- RonLC
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- Replies: 17
- Forum: Engine & Drivetrain
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Touchless Lift Gate Issue 2021 Danali
I am having trouble getting the lift gate to open when I pass my foot though the GMC logo shining on the ground. It takes several times to work if at all. Ideas?
