Excessive oil consumption and valvetrain wear
ENGINE
4 NHTSA complaints · 2018-06 → 2020-12
“I BOUGHT MY CHEVY TAHOE IN 2012.I WOULD CHANGED MY OIL EVERY 3000 MILES.EVERY TIME MY OIL WAS CHANGED,THE OIL TECH WOULD INFORM ME THAT YOUR OIL IS VERY LOW BY SHOWING ME THE DIP STICK”
“IN 2015 I TOOK IT IN FOR A CHECK ENGINE LIGHT AND THEY SAID THERE WAS A MISFIRE AND THEY REPLACED THE CAMSHAFT AND MACHINED THE HEADS STATING THAT THE VALVES WERE LEAKING”
“I WAS DRIVING WHEN ONE OF THE LIFTERS COLLAPSED , I HAVE HAD NOTHING BUT PROBLEMS WITH THIS VEHICLE I SUBMITTED ANOTHER COMPLAINT A WHILE AGO AND HADN'T HEARD NOTHING”