No heat

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check if it has a heater control valve, you sure the heater core is not clogged-up-also test the new Stat
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Tuesday, October 16th, 2018 AT 1:15 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
With the engine running, hot, and the heater on, are both heater core hoses getting hot?
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-1
Tuesday, October 16th, 2018 AT 1:15 PM (Merged)
Tiny
ROUSE66K
  • MEMBER
  • 1 POST
  • 1998 FORD EXPEDITION
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Heater Valve where is it & how do I check it on a 98 expedition 4wd 5.4
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Tuesday, October 16th, 2018 AT 1:15 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Its on the heater core hose, find them at the fire wall and follow it back towards the engine, you will see it tied into the line.
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Tuesday, October 16th, 2018 AT 1:15 PM (Merged)
Tiny
LINDAL
  • MEMBER
  • 1 POST
  • 1998 FORD EXPEDITION
Heater problem
1998 Ford Expedition V8 Four Wheel Drive Automatic

I recently changed the heater core in my suv and the heater still does not work, air seems to flow freely however the air is a mild warm temp. What could be wrong?
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Tuesday, October 16th, 2018 AT 1:15 PM (Merged)
Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
Does your truck have a cable actuated heater valve?
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Tuesday, October 16th, 2018 AT 1:15 PM (Merged)
Tiny
BKHAWK
  • MEMBER
  • 1 POST
  • 1998 FORD EXPEDITION
  • V8
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
I have replaced the thermostat but still have no hot heat, could the water pump be bad?
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Tuesday, October 16th, 2018 AT 1:16 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Is it over heating do you have rear heater how’s the heat on that
isolate and flush the heater core
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Tuesday, October 16th, 2018 AT 1:16 PM (Merged)

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