My 2002 sierra has always has a quiet lifter tick at idle. Recently at high revs it sounds and feels like something in the engine is shaking. If I keep the high revs going the check engine light starts flashing. The truck doesn't start beeping and it doesn't drive differently when this happens. The light stops flashing when I turn the truck off and then back on again.
I brought a code reader home and it has no stored codes.
I have also noticed that it is burning oil.
I have only put a new muffler and cold air intake on the truck for modifications and these have been on the truck for half a year.
I am getting concerned about this issue and would really like to have it fixed. Any ideas of what it could be?
I brought a code reader home and it has no stored codes.
I have also noticed that it is burning oil.
I have only put a new muffler and cold air intake on the truck for modifications and these have been on the truck for half a year.
I am getting concerned about this issue and would really like to have it fixed. Any ideas of what it could be?