heater not working

2002 FORD EXPEDITION
136,000 MILES • V8 • 2WD • AUTOMATIC
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JOSEARIAS
  • MEMBER
  • 9 POSTS
ford expedition 2002 heater not working 136000 miles. already checked actuator, t-stat,plastic vent replaced antifreezer liquid, core, (looks good). still not heating

Dec 15, 2010 at 7:28 PM
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FIXITMR
  • ✓Experienced Mechanic
  • 9,990 POSTS
when engine is hot are hoses hot in and out of core?
Dec 6, 2018 at 9:21 AM
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BMRFIXIT
  • ✓Experienced Mechanic
  • 19,053 POSTS
Heater Core—Plugged

WARNING: The heater core inlet hose will become too hot to handle if the system is working correctly.

Check to see that the engine coolant is at the proper level.
Start the engine and turn on the heater.
When the engine coolant reaches operating temperature, feel the heater core outlet hose to see if it is hot.
If it is not hot:
the heater core may have an air pocket
the heater core may be plugged.
Dec 6, 2018 at 9:21 AM
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