Problems with 5.3 Vortec engine
The vehicle only has 44,600 miles and has had several problems with the 5.3 engine with Active Fuel Management. Whenever there's a code set, the warnings are activated: Service Stabilitrak, Service Traction Control. The first time all I had to do was change the air filter. The most recent required a replacement of a broken AFM lifter at a cost of almost $2300.00. I have continuously experienced warnings to shut off the engine immediately due to low oil pressure. Changing the oil usually stops that for awhile. The defogger grids on the rear and side windows have come off the glass. These are things that should not be happening on a low mileage vehicle.