Bigbob3000

iTrader: (18)

My main temp gauge has been raising and dropping recently, and I think I'm just being over caring.
It happends every now and again, and only when I'm at a stand still.
I've had the expansion tank top off to make sure no air in there...
Any ideas?....

ian.e

iTrader: (1)

How high up the gauge is it going? Mine used to do that in traffic, was a big airlock somewhere, and the header tank was full of water too. Have you refilled the system lately, had a pipe off or anything?