No heat

Tiny
SATURNTECH9
  • MEMBER
The blend door actuator is behind the center of the dash.
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Friday, January 13th, 2017 AT 7:19 PM
Tiny
REBSTRKS1
  • MEMBER
Do you have to pull the dash, or is this the one they say to pull the glove box to get to easier?
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Friday, January 13th, 2017 AT 7:54 PM
Tiny
REBSTRKS1
  • MEMBER
There is a vacuum canister is it vacuum controlled?
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Friday, January 13th, 2017 AT 7:57 PM
Tiny
SATURNTECH9
  • MEMBER
No it's a electric actuator and the glove box part is if your replacing the blend door with the dorman repair kit.
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Friday, January 13th, 2017 AT 7:59 PM
Tiny
SATURNTECH9
  • MEMBER
Should be able to see it to the left side of the glove box up under the dash
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Friday, January 13th, 2017 AT 8:00 PM
Tiny
REBSTRKS1
  • MEMBER
Ok I will find it, that has to be the problem, it's the only thing that makes sence THANK YOU
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Saturday, January 14th, 2017 AT 7:56 AM
Tiny
SATURNTECH9
  • MEMBER
Your welcome make sure you check the shaft of the blend door to see if uts broken
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Saturday, January 14th, 2017 AT 8:24 AM
Tiny
GINAMILLER
  • MEMBER
  • 1999 FORD EXPEDITION
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 142,000 MILES
The heater isn't blowing out any heat. I am researching and I keep finding its my heater core is what keeps popping up but the truck never over heats. With my experience with vehicles is that a heater core blows out steam through the defroster vents and then heats up the engine real fast. Stuck we just got this SUV too. Stumped.
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
First, check the heater hoses at the core. They both need to be hot. If one is hot and one cold, the heater core is clogged.

If they are both hot, then the blend door motor has failed.

Roy
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
GINAMILLER
  • MEMBER
Ok if its clogged how do I fix it do I just replace the core? And if its the blend door how do I fix that. I dont trust many mechanics in my town. If I can do it I will.
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
You can flush the heater core by using a garden hose and flow both ways.

The blend door motor is much tougher.

Roy
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
NEWTON_S_83
  • MEMBER
  • 1999 FORD EXPEDITION
1999 Ford Expedition Four Wheel Drive Automatic 130000 miles

Hi. I have a 1999 Ford Expodition and the A/C works great, but when you switch it over to the heater it still blows cold air. I was woundering if you could help me. I;m guessing its the theromstat or the heater door not opening. Not sure.
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
LEGITIMATE007
  • EXPERT
Yes it is more than likely a mixing door. And they will have to take the dash apart. But I would definitely get several opinions. The dealer is very very expensive and you could save several hundred dollars, going elsewhere. So check it out.
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
EXPO
  • MEMBER
  • 1999 FORD EXPEDITION
  • 160,000 MILES
Warm up car turn the heat on then it blows hot air then immediately turns cold.
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
RIVERMIKERAT
  • MEMBER
Feel the heater hoses at the bulkhead when the engine is hot. Both hoses should be hot. With the engine running, move the temperature control lever/**** completely both directions. You should hear the blend doors in the airbox moving. If not, check the connections, wiring, and vacuum lines. Make sure the vacuum lines are drawing a vacuum. If so equipped, make sure the heater control valve just inside the engine compartment is operating properly when the temperature control is moved. Make sure the cooling system is full and the thermostat is operating properly (look in the radiator with the engine one and at temperature-this will also tell you if the water pump is working properly).
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
RJSTES
  • MEMBER
  • 1999 FORD EXPEDITION
  • 15,000 MILES
When is heater **** is all the way to heat with high fan it blows cold air.
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
SATURNTECH9
  • MEMBER
The first thing I would do is make sure both your heater hoses going into the heater core are getting really hot when the engine is up to normal operating temp.
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
BUBBLES6785
  • MEMBER
  • 1999 FORD EXPEDITION
  • 210,000 MILES
My heater will not get warm.
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
No, and I believe I just addressed your heat issue.

Roy
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)
Tiny
ALEXHOLEINONE
  • MEMBER
  • 1999 FORD EXPEDITION
  • V8
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
What can a backyard mechanic do to fix or replace the heater core. How can I disconnect the power for my heater core for the mean time, till I am ready to have it fix.
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Tuesday, October 16th, 2018 AT 1:14 PM (Merged)

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