They were going to have the truck finished a week ago but GM sent the 5.3l engine with the 6 speed trans flywheel instead of the 8 speed which my truck has. The cylinder 4 thing was the initial code when i took it in for cold start/misfire the rest of that was found after they quoted $1100 to replace 2 injectors.
So my 2017 Silverado has been at the dealer for a month now just picked it up this morning from having an engine replaced. Started off with just a check engine light that lead to 2 injectors needing replaced. That turned into the WHOLE engine being replaced after they started truck from injector replacement. They still couldn't tell me what caused the major failure to replace the whole engine after starting it up from replacing the 2 injectors. At least now it runs great! lol. Attaching the whole dealer write up sheet for the engine it is interesting for a 36.5k mile truck.
KungfuWerewolf replied to NEVER AGAIN A GM's topic in 2014 - 2018 Chevy Silverado & GMC SierraI had this same exact thing 2017 silverado they said 2 injectors were bad cylinder 4 & 6 and then replaced them. They started the truck up and service rep guy told me "something broke loose from bottom of engine" and now I am waiting a few weeks for an entirely new engine... I'm not sure how to feel about this honestly. Said after investigating cylinders 4 & 6 both had pitting in the walls possibly from the bad injectors? truck has 36.5k miles at time of this.
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So lets start this story with buying the 2017 silverado LTZ Z71 Jan 19th of this year. 34.5k miles on it. Drive it for another 1.7k miles and get a check engine light scan it myself and get codes p0300 and p050D... great probably lifters or something right? Take it to dealer they get same codes then tell me that 2 injectors in cylinders #4 and #6 are bad and need replaced. They say 1,100 for the injectors will take another week to get them in and replace. Wait the week and get a call they replaced the injectors... started the truck... and per the service guy "something broke loose from bottom of engine". Wait another week, brings us to today, get a call that now I am getting an all new Engine. They found pitting in both cylinders 4 & 6 they say probably from the malfunctioning injectors. I ask about what he meant by "broke loose" and he just says they aren't 100% sure what happened but new Engine none the less. Now I get to wait another 2.5 weeks for engine to arrive and be replaced. I am so very curious how a 36.1k mile truck can have that bad of a problem that the WHOLE ENGINE would need replaced lol. I'm glad I am no longer out any $ but still... its so curious.
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