The problem I had was from when I let the truck sit without driving for 12 weeks
...bad gas... Now this happened the first summer I had the truck running. I let the truck sit in the garage over the summer without starting it. Temp's over 110.
Real world experience
Could of been a bad batch out the pump I don't know.
That red cap jar looks close to what I found. Wonder if that gas would start anything?
My down time is opposite from many of you. I park mostly in the summer and drive all winter.
I start the truck more often now and try to add fresh gas over the summer.