Originally Posted by
CossieRich
Got a pace header tank on mine. The cap has started to release pressure so where do you get a high pressure cap from? I'm sure pace just supply the normal one

Rich,
Are you seeing high temps? It may be worth hooking up a pressure gauge to your cooling system, just T of one of the small pipes. I hope it's the cap but it's normally h/g issues that causes your symptom.
You could do a sniffer test in the header tank, that might be easier.