I know, sounds like blown head gasket. However oil looks fine, no coolant leaking and coolant looks fine. It also does not overheat (that I can see, it dies first). This all started a few weeks ago. I changed spark plugs, oil and undercoated the car with primer. I did get some paint on the radiator. I also put techron in the fuel tank and changed fuel filter. The car ran fine before, now here is what is happening step for step.
Car starts fine, idle is a bit rough (it was before too) but nothing drastic. I rev car at 2500 RPM until it is warm. The thermostat stays in the middle yet I begin to see a good amount of white smoke coming from the exhaust. If I take foot off the accelerator the car will shut off at this point. If the car is not warm yet, it won’t shut off. When it does shut off, I cannot restart it even with gas pedal down. It just cranks and cranks. When I let it cool down it starts up fine and the same thing occurs. I cannot tell if the radiator fans are turning on as the car dies before they turn on (it’s cool outside). The thermostat never indicates overheating.
The entire radiator is smoking white (not from cap) but I assume that is from my paint overspray burning off. Could this be getting sucked in and stalling the car out when the car warms up enough to start burning off the paint? Could I have painted something inappropriate? What could this be? I know a decent amount about cars.
If I let the car warm up just by idling it will run until it gets warm then it stalls and again, won’t start until it cools. It seems to keep running if I keep RPMS up but right when I take foot off accelerator when warm it shuts off. Ideas?