Random Long Crank
Hello, just a quick question to see if anyone else might have a simple answer to this before i dig into the truck. I searched and didnt see much that was applicable to this specific issue.
Occasionally my truck will not start, unless you crank it for 30-40 seconds, then after that, works just fine, starts like normal, you would never notice anything outside the ordinary. This is maybe a once a month of so occurrence, which seems to me like it would exclude many of the common things like the filter head and that kind of stuff.
This issue was present before and after my delete, so i do not think that had anything to do with the issue. This morning though i started the truck with the remote start to let it warm up for a couple minutes, i heard it start and when i went outside it was off. No big deal, hopped in and cranked it but it would not start. Checked for codes with the autocal and my scanner, there were none. Cranked it for an eternity and a half and it started, ran fine and i idled it for a while to make sure it wasnt going to stall again. it ran fine, i shut if off and restarted it a couple times without issue and called it good for now.
Any ideas? my first thought would be security shutdown but there is nothing displayed on the dash to indicate that. I can also smell fuel when cranking, so i do not believe its a fuel delivery issue, and were it to be a low rail pressure issue, i would expect the issue to be a regular problem. At this point im wondering if theres maybe a faulty cam or crank position sensor or something but again, id expect that to be a more frequent issue.
2015 Chevy Silverado 2500 HD 6.6L LML
TCM & ECM Tuning by MotorOps
Y Bridge delete with SS up and down pipes
4" MBRP downpipe back exhaust with muffler