radiator is overheating and heater stopped working

1999 INFINITI QX60 HYBRID
17,000 MILES
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CHRISSY2121
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car started over heating thought was radiator, put bars leak in it stop overheating & heater stopped, told to change thermostat am but found water behind the pulley's. Water low in radiator again what else can it be and why did heater stop working? The gauges are not showing it is getting hot any more but if thermostat is bad it won't right?
Nov 30, 2011 at 6:16 PM
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RASMATAZ
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Replace the thermostat and try bleeding it out could be airlock -start here -if it continues get it block and pressure tested-
Nov 30, 2011 at 6:23 PM