To test a water pump the best way is to hold down the upper hose then release you should feel pressure build and surge past your hand.
Just replace the thermostat as it is 3 dollars at the most.
What I think is wrong is its time for a radiator flush and engine flush.
Also scrape some of the oil off of the engine.
SPONSORED LINKS
Saturday, June 14th, 2008 AT 5:17 PM