1995 Ford Windstar heater core or blend door

Tiny
NATHAN MALLORY
  • MEMBER
  • 1995 FORD WINDSTAR
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 142,000 MILES
Heater blows hot while driving but blows cold when at idle, temp guage nears overheating then drops down to normal operating temp on its own. Fan seems to be working properly. Thermostat changed, upper and lower radiator hoses changed, heater core flushed, water pump changed. Coolant level in radiator full, overflows when cap removed and completely cool, cap was changed. Thinking maybe a partial blockage in heater core or blend door not working properly.
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Tuesday, January 5th, 2010 AT 9:31 PM

1 Reply

Tiny
BLUELIGHTNIN6
  • EXPERT
Points more toward faulty radiator then heater core. If heater core was bad then it would overheat constantly. Flush radiator out if it doesn't help then I suggest replacing radiator.
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Tuesday, January 5th, 2010 AT 9:37 PM

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