I have a 2012 Chevy Silverado 1500LT 4x4.
I have a 2012 Chevy Silverado LT 4x4.The check engine light keeps coming
on I have replaced over a thousand dollars in new parts from the filler neck,
fuel pump and gasket purge valve all the way up to the carb. Two or three
Gas Caps all OEM. but the light keeps coming back on. Sometimes the
tighten cap light comes on and sometimes it doesn't. The Mechanic is
scratching his head as we have replaced everything the code it is throwing.
from the fuel tank forward. I need help as to what else it could possibly be. It
is saying it has a leak in the fuel system somewhere. Can anything else be
causing this or should I say has anyone else encountered this problem. And
who would be best to troubleshoot this problem.