so the engine is cranking but it's just not firing up?
usually a sensor failure will set a code.
IMO fuel pumps are the most common chevy truck failure. yours is probably on it's way out. do you have a fuel pressure gauge? they are cheap at harbor freight, maybe pick one up and have it in the truck. when it's not starting hook it up to the fuel rail and see what the pressure is.
Yep, it cranks but slower than normal, and just doesn't fire up right away, takes it a second as if I didnt turn the key fully, but I did. No codes now, but like I mentioned I was getting that evap code earlier this year but have not seen it pop for several months now.
That could be possible as it seems it does it less often if I turn the key to on for a couple seconds and let it prime. Might be time for a walbro and fresh filter. But then Ill end up pulling the bed and going buck wild with por15 under der.
I have read this thread and you are still not being descriptive enough to give an online opinion of what the cause may be .
What I get from your post is that it's is hard to start sometimes. You replaced the starter and it is still the same . Then you go on to ask about the flywheel .
Are you asking about Flex plate because it is grinding when cranking ?
You say it happens randomly . When it happens , does the starter sound really bad when trying to start or grinding noise ? Or does it just crank slow like a half dead battery ?
Or does the cranking sound normal , but just doesn't start ?
Yes, like I said, it struggles to fire up right away sometimes, like every 5 or so starts. The starter died completely, thats why I replaced it. I assumed the starting issue was due to it being on its way out, but that was not the case as it continues to do it with the new starter. Flywheel, flexplate, same difference, no? I mean yes, its an auto so yeah the flexplate, which has the starter gear on it. I mentioned it cause I don't know whats causing this issue, Im not a mechanic. Im capable of taking apart and putting shit back together but I hate diagnosing problems. lol
No crazy grinding noises or anything like that, just slow like the battery is weak, but it did it with the new battery also so unless I got unlucky and that battery was shitty too I didnt think that was the issue.