Help needed: coolant fluid is creamy on top.

[alpac]

Originally Posted by Young_pong

What should I check for the "head gasket" ?

There are some obvious signs for a blown head gasket in addition milky oil like temp indicator passing the mid section and going close to red, white smoke from the exhaust and coolant disappearing quickly. However, the best is to get your compression tested.

[Young_pong]

None of that ?

Could it be the valley pan gasket.

[supersteve]

The 3.0 doesn't have a valley or a valley pan or a valley pan gasket. The easiest way to troubleshoot a head gasket is to look at the spark plugs. If any of the plugs are substantially cleaner the the remaining. You have a leaking head gasket. The plugs should be dark brown on the rim and tan or light brown on the center electrode. If one or two are bright and shiny you have a head gasket leak or even worse a cracked block or cracked head.