True I haven't thought to flush the fluid an get all new. I'm thinking exactly the same thing but the dealership assured me it was good fuel pressure and keeping prime. I thought MAF but it's good and just replaced the ECT sensor today so we will see if that does it. Maybe it is the crankshaft. I'm tired if messing with it though lol it's been a month of me testing and checking things almost every day for an hour or two. I can't wait too see what it is at this point. It's probably something stupid and simple lol. I'll put new coolant in it tomorrow
Get the synthetic coolant on amazon premixed is all you need. The system takes almost exactly one of these.