Engine over cranking
My 2023 Silverado turbo max with 44k miles has been over cranking before eventually starting. First thing in the morning it starts up like a pro, but if I go into a store for 20 minutes and go to start it again, it has a hard time starting and I can hear it over cranking. I’ve looked into new spark plugs, fuel pressure regulators and such , but I haven’t tried anything yet. Wondering if anyone else has had similar issues or if anyone has any advice?
Engine does idle rough once it starts and uses more fuel than it should when at idle