ndestounis

My 2014 crewcab z71 5.3 just started going in and out of 4 wheel drive auto. It usually happens on a grade with snow. after going in and out a few times the display gives the message 4 wheel drive off. What is causing this to happen? any help is appreciated.

Service Manager refused to do anything else besides replace the lifter that collapsed. Would not look up bulletin on the issue. Said the warranty would back any other issues. Not sure what else I can do at this point.

I had my 2014 Silverado crew cab at dealer again for warranty work. When I drove off I got 1/4 mile and the truck went into safe mode and all the lights went off. I turned around and service manager thought it was a plug wire. Turns out its a colapsed lifter. They will only replace that lifter. Any suggestions please.

My Silverado 5.3 cre cab was at dealer again for air conditioner issue. I picked it up drove 1/4 mile and all hell broke loose every light light up and it went into safe mode very loud knock started. Drove back and the service manager thought a bad wire or plug.turns out its a colapsed lifter. They are only replacing that lifter nothing else. I would think they would at least do the whole side. Any thoughts or suggestions would be great. Thank you