Join Date: Nov 2009
Location: SK, Canada
Car Year: 10
Car Model: XT
Feedback Score: 0 reviews
it does sound like the water pump. Hot coolant can rise out of the engine into the radiator, but isn't getting pumped through the engine. When idling, does temp gauge get to normal position without overheating? If so take the rad cap off, start it and let it idle up to temperature. Then look inside the rad to see if you can see the coolant flowing through the radiator. As a warning, the coolant may expand and overflow from the cap, so take precautions for that.
If it doesn't appear to be flowing, it would be best bet that it is the water pump. At idle not much heat is generated, so it may not overheat, but once under load much more heat is generated and without coolant flow, it overheats in 2 miles.
2010 Satin White Pearl FXT Limited
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