so my radiator fluid resevoir appears to be "boiling". i heard this means air is leaking (bad head or head gasket). i haven't tried it on idle, but after a little driving it gets pretty bad. so bad that the top of the resevoir will pop off. i've heard a lot of different things from buddies. bad thermostat, bad temp sensor, bad head gasket, cracked head. what do you guys think? oh yeah, now my cars dead and i have no fuel pressure or spark. shitty huh.

 

could be all of those...could be your radiator too though.