>
> What happens when you open the heaters up and crank up the blowers?
>
> what will this tell me seeing as how it has a new radiator?

Heater core coolant circuits run independent of the thermostat. If they
blast out copious amounts of heat, you're know you're getting good coolant
flow so you probably don't have a water pump issue.

--
John Bange
'90 Vanagon - "Geldsauger"