silveradosid

what about vavoline full synthetic dexron VI

let us know what you find, fighting with gm on this, 2021 3500 denali

here is the wiring reverse lights.pdf

since you have a sample, send it to be analyzed

did you prime the lifters with oil before installing them

do you have the stock intake system on your truck, a screw that size would have got trapped in one of the corrugations of the stock system. next would be find an independent shop. the knock is probably a jammed lifter from the screw hitting the valves. if the cylinder isnt scarred and the cam is ok, piston and rings, lifters and pushrods and a new head and put it back together

not all 2014's were wired for the camera, check to make sure the wires are there rear camera.pdf

have you checked the g218 ground wire , alot of issues are caused by this ground connection

check to see if the noise is coming from the a/c compressor

yes there is a multi function control board inside the headlight, you would have to take the headlight apart to access it. you cannot buy the board separately, so new headlight or go get a used one or salvage one from a auto wrecker

there is a switch in the door latch assembly that gets stuck or sometimes breaks, try lubricating the latch

with auto temp control it will only cool down to 42, on trucks with manual controls you can get it down to 38, and that is only if the system is running perfect

the dlr function is controlled by the light sensor on top of the dash, the lightning strike may have cooked it

what version of windows are you using, try using a different version of the mdi manager

wams, coastalflash,digitalsolutions and mvi just to name a few