Hi Guys
I've noticed after a few spirited drives around, that when I turn off the engine, moments later a loud bubbling/gurgling sound appears from the engine bay, on inspection the expansion tank is filling rapidly and bubbling violently. After about 10 mins of bubbling away, it suddenly goes back in the radiators. The level in the tank is also then lower than the max line, but I'd filled it a week ago to the max line. There is evidence that the tank has overflowed.
The temperature guage reads normal, the engine bay is hot, but guess thats normal.
What is the cause of this?
BTW the expansion tank is the one I relcoated with the new one from Greddy when I got my FMIC.
Thanks