2011 starting issues 5.3

[jsharp79]

I have a 2011 gmc texas edition with the 5.3l motor in it it has right at 40,000 miles on it i bought it used with 28,000 miles on it well the issues i was having is in the morning and after it sat up i would start it up and it would run rough the check engine light would flash well i took it a local dealer and they could find anything wrong with it they told me the injectors needed cleaning well i thought that was bull so i didnt do it and took it home well 2 days later i was at work( im a paramedic so my truck sits in the parking lot for 24 hours) well i went to work and worked a double shift that after noon i went out adn tried to start it the truck would not start like the battery was dead i turned the key off and tried it again it turned over this time and as it did i heard a loud pop and white smoke came from my tail pipe and the motor strated running really rough i took to my dealer a diffrent one than above and they said it the head gasket had blown and replaced it i got it back from dealer and took it home the next mornign i went out ans started to go to work it was making a very lound clacking noise like a thrown rod i immediatly cvalled my dealer he said bring it in so i did well the nosie went away as the truck got warm well my dealer called me yesterday and said that the lifters or the cam was badthey would know more as they got it tore down well first of all is this normal for this year of gmc and my second question is can i requiest that they just repalce the whole motor because my concern is at 40,000 mile i m having this many issues what is come later down the road and how to i go aout this..

thanks

 

[Molson02536]

can i requiest that they just repalce the whole motor because my concern is at 40,000 mile i m having this many issues what is come later down the road and how to i go aout this..

thanks

It would not hurt to ask for a rebuilt engine installed from all the list of things that has gone bad on yours. From what you have described it sounds like your knock sensors have gone bad and shorting out causing the timing to be off when you first start the engine.

It was common for the knock sensors to corrode in the intake valley. Water would collect in the valley and drain into the knock sensors cause them to short out. The cam and lifters were also an issue from low oil pressure from a faulty oil pressure relive valve.

Keep us posted and hope you get your engine running 110% again soon.

Molson02536

 

[jsharp79]

well after being at the dealer for 10 days they found nothing wrong with it they didint even look at it all they did was go out and start it every morning and afternnon and said it wont do it for them. i went and picked it up it not making the noise any more so not sure there but i had anthor issues that they were suposed to look at there was a griniding noise coming from the starter area when i would start it so i asked them about it they advised me they looked at it and it was the starter making noise so they checked with my extended warranty they told them no it was gms repsonsibilty under the power train warranty well my dealer buckalew chevrolet in coroe is telling me that it has not failed so they can not reaplace it under warranty wats the point of the warranty if i have to repalce it out of my own pocket there is ovisouly a problem and they told me it was the starter but they wont repalce any help on what to do now