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2001 mercury sable heater not blowing hot air

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 71 Answers

SOURCE: heater doesn't work

Sounds like the heater core is stopped up. Try removing the heater hoses and backflushing the core.If this doesn't work replace the core.

Posted on Nov 22, 2008

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pkthoege
  • 93 Answers

SOURCE: 2002 mercury sable heater wont get hot

you have a broken or stuck temp blend door in the heater case. or the servo motor is broken. this sits on top of the heater case

Posted on Dec 02, 2008

dttech
  • 4803 Answers

SOURCE: Why doesn't the heater blow hot air?

If your "Check Engine" or "Service Engine Soon" light is on, you need to have that checked out first.
If not, the next thing you should check is your engine coolant level. (Antifreeze) If the coolant level is low, the engine coolant does not circulate through the heater core and the the heater doesn't work. The coolant level could be low for a number of reasons including a leaky hose, water pump, or head gasket. In any case, if it is found to be low, you need to find out why.
If the coolant level is OK then the thermostat function needs to be checked to make sure that the engine is reaching operating temperature.
If all of the above checks out OK, then the heater control valve and/or the blend air door in the HVAC housing needs to be checked for proper operation. (NOTE: some cars are not equipped with a heater control valve)

Posted on Oct 10, 2009

  • 1779 Answers

SOURCE: 2001 Dodge Caravan heater blows cold air when stopped

Have you checked the coolant level? What you describe is exactly what happens if the coolant level is low. When stopped at idle, hot coolant is not circulating through the heater core, so no heat. As the engine increases in rpm's when you pull away from the light, the water pump is spinning quicker, and some coolant is making it to the heater core. So check the level, and if it is low, keep an eye on it to see if it drops again. That of course indicates a leak somewhere. Get it fixed, as overheating the engine leads to costly repairs and worse case a new engine. Let me know how you make out with this.

Posted on Dec 05, 2009

Testimonial: "Thanks Curt! You were right ON!"

  • 1 Answer

SOURCE: AC blows hot air but AC compressor works

if the compressor works and your freon is charged it may be the blower flapper door....disconnect battery for 10 minutes and then re-connect to reset the electronics that control the flapper

Posted on Jul 19, 2010

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1 Answer

1999 mercury sable heater not blowing hot or cold air


If no blower is running check for a bad fuse for the heater blower or a bad blower motor and or resistor or burned connector to the blower motor

Dec 04, 2014 | 1999 Mercury Sable

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2002 Merc Sable wont blow air


I'd have to say it's the blower motor. Does it blow hot air when the heater is on?

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Replaced thermostat, cleaned heating coil still wont blow hot air in 2001 sble


is heater core have water flowing thru it ? if take haeter hoses loose at engine run water thru one hose see if flowing out the other one

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AC blows hot air but AC compressor works


if the compressor works and your freon is charged it may be the blower flapper door....disconnect battery for 10 minutes and then re-connect to reset the electronics that control the flapper

Jan 12, 2010 | 2001 Mercury Sable

1 Answer

I have a 2002 Mercury Sable 3.0. I noticed when


The clicking noise is the motor for the "blend door". The heater core and the air conditioning side share the same ducting. When you move the knob a small motor moves the door letting the respective hot or cool flow happen.
The heater core is probably blocked. The engineers at Ford have the coolant hoses bypassing the core with a WYE at the firewall. The coolant takes the path of least resistance and stops FLUSHING the heater core and it eventually clogs.

Oct 12, 2009 | 2001 Mercury Sable

2 Answers

2002 Mercury Sable, Heating Problem The problem I am having is I am getting almost no heat. It is not the blower motor, just had this replaced. Right after last winter it started blowing cold air, so I...


Hello. You are in luck. I just had this same issue in my shop this week. We changed the thermostat, and replaced the coolant. Fixed it right up. Since you did not mention a new thermostat, that would be my next move, if I were you.

Oct 09, 2009 | 2001 Mercury Sable

1 Answer

Why does my 2001 Mercury Sable climate control only blow heat?


It could be the door that should be shuting off the heater core area is not shuting.The door works with engine vaccuum.The vac. comes from the intake manifold. With your car being a few years old, the heat from the engine may have caused the vac. hose to dry out and crack or become disconnected. With the engine cold and off, look under the hood. A small size vaccuum hose should be connected to the intake manifold and run inside the cabin area. This is one thing you can check. I hope this helps you.

Sep 05, 2009 | 2001 Mercury Sable

3 Answers

2002 mercury sable heater wont get hot


you have a broken or stuck temp blend door in the heater case. or the servo motor is broken. this sits on top of the heater case

Dec 02, 2008 | 2001 Mercury Sable

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