Boiling coolant rushing back into overflow
Hey guys quick question.
as you know summer is coming up, and this bring a problem with my yj...
when I drive in the summer 90+ degrees, if i drive for a while, then park it at the pool or anywhere for that matter, boiling engine coolant rushes back into overflow reservoir and sometimes spills over the top, and then as the engine cools back down, it'll suck some (most) of it back up... it isn't a huge problem, it just gets a little annoying having to add coolant once a week during the summer months.
I was thinking it could be a bad thermostat, but I'm not too sure.