SOS,i changed the theremostat,but still too hot,is there cause it? the water
see Rocky's comments /\ /\
the OEM pump has a plastic impeller, known to shatter/break. When it does, reduced or no coolant circulation is the result. You have to remove the pump to inspect it. If it is bad, replace it with a new metal impeller pump only, OK...
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The impeller is part of the water pump
many suppliers carry the improved metal pump:
ECS Tuning, others... try a search for this
Here's a pic, from a link posted by blackfnTTruck /\/\<ul><li><a href="http://www.amp82.co.uk/tt/timingbelt/">the link</a></li></ul>



