Patrick B

I have a 2019 5.3 L84 and I have had three warnings pop up since I bought the truck with 9k miles on it. Traction control, service parking brake and ECS would come on every once in a while. At one point the truck was in the shop for over a month. They said it was the battery and changed it out. It finally stopped for a few months then started again. I was on my way back to Idaho from Texas hauling my camper 6 hours into the 30hr drive when the trans went to 5k rpm out of no where and the truck jerked hard to the left and there were those 3 lights again (Yes the whole trip I was paying attention to my oil pressure and temps on all equipment). Luckily I didn’t wreck and got the vehicle stopped to look over every thing but before I did come to a complete stop the trans temp started climbing from 180 all day with weather being upwards of 106 to 205 quicklyCouldn’t find anything wrong just a knocking in the motor. My brother had a code reader so we plugged it in and it only said #7 cylinder misfire. Changed plugs and wires and still the same thing. Checked the coil packs and all good. The push rod ended up being bent lifter was stuck and the other lifter for #7 had a flat spot on the roller and camshaft has a 1/8” worn spot on the lobe