Cooling Issue

skep419 said
I had a similar issue. filled up the radiator ran it until the thermostat opened. installed the radiator cap. without the valve open in can cause an air pocket. Not 100% but worth a look.

Sorry, but you lost me with the incoherent sentence. How would I verify whether or not there is an air pocket? I've driven the can quite a bit. I would think any air pocket would have would itself out by now.

TrailBeast said
I didn't see anything about a fan shroud and those have everything to do with that problem.
As a matter of fact that exact scenario is exactly what they are for. (to flow air over the entire radiator surface like it does when the car is moving)

I have a factory style shroud sealed very closely to the radiator tanks. This is the reason why I added the extensions to the shroud. Thanks for the help.