Another way to check if it failed is to look inside your radiator cap, and/or use one of those coolant testers to pull a sample out of your radiator.


If you see little black specks, it is mostlikly due to the plastic impeller breaking off.....but even if its the thermostat, i would reconmend doing preventive mantinence,
and changing the water pump for one with a metalimpeller. Even if its not bad.

Roz

3.0 SVT hybrid...all the fixens...Track/Race ready very soon!!!!!! 20,000 + miles