water pump on 1999 Nissan Quest

my van is over heating so i figured it was my thermostat so i changed it but it still over heats. is it the water pump and if so what steps do i take to remove the old one and replace it with a new one?

by in Hialeah, FL on March 11, 2011
1 answer
ANSWER by on March 11, 2011
If system is full then could be water pump if the impeller is bad and not moving coolant thru system. May also be clogged radiator or a/c condensor not allowing air flow, could be radiator not flowing, can find out if use infrared temp gun to check for large temp differences at the radiator core, good luck.
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