Question about 1999 Mercury Sable

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1999 mercury sable heater not blowing hot or cold air

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  • 132 Answers

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

Posted on Dec 04, 2014

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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

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

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SOURCE: 2000 MERCURY SABLE

My 2000 Sable starts blowing hot air about every 6 months. I mean like an oven. All I do is disconnect the battery negative terminal for about 5 minutes. After I re-connect the problem is solved. This solves many problems on this car, it just needs a re-boot. It must be powered by Microsoft (ha ha). Good luck. ps my auto headlamps never did work right either. Dave.

Posted on Apr 21, 2009

ginko
  • 19396 Answers

SOURCE: 2003 mercury grand marquis LS

The blend door is stuck in cold position. That usually happens because the blend door actuator has failed.

You will need to test and replace the blend door actuator.

To replace the actuator you will need to take apart the dash and remove completely the instrument panel,d isconnect the connector, remove the four screws, remove the temperature blend door actuator and replace it.

The replacement is not a job for beginners, since you have to take apart the dash to access the actuator.

Regards.


Posted on Nov 18, 2009

  • 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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2003 mercury sable heater blows hot air out dash but when transfered to floor or defroster it blows out cold air tryed flushing system but didnt help ...any advice Confused


Not in the coolant system, you flushed

It is a failed HVAC Blend Door Motor, under the dash

The fact you have heat or A/C, but not in all 5 positions
or combinations, should have told you, the air flow is not
switching as it should

Oct 05, 2014 | 2003 Mercury Sable

1 Answer

2002 mercury sable ac not blowing but heater works any ideas?


Could be a blender door issue. What a blender door does is mix the cold air from the AC with the hot air from the heater core. If you put the switch ALL THE WAY to hot, the blender door (usually an actuator) pushes the door up and allows only air passing thru the heater core to enter the cabin. If you push all the way to cold, it only allows air from the AC. If you put halfway, it mixes/blends the air...

Aug 04, 2013 | Mercury Sable Cars & Trucks

1 Answer

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?

Aug 07, 2012 | 2002 Mercury Sable

1 Answer

Turn the heat control from cold to hot but it still blows cold air


porbably your cabin heater (radiator like aparatus inside dash) is clogged with debris. you need to replace it if your blower works but it blows only cold air. but be sure that your engine is warm.

Sep 13, 2011 | 1995 Mercury Sable

1 Answer

Heater blowing cold air and temp gauge running hot. any ideas?


I have a 92/3.8 that did the same thing. This sounds silly but it worked. I used a floor jack and raised the front of the car as high as I could. Then filled the radiator (car NOT running). Hope this helps

Oct 17, 2010 | 1999 Mercury Sable

1 Answer

A/c Compressor turns off and on but not cooling


Heater valve or door might be stuck open allowing hot air to mix with cold.

May 04, 2010 | 1999 Mercury Sable

1 Answer

1999 mercury sable had a recent head gasket replaced now heater only blows cold air.


Take it back. They either left a vacuum line disconnected or accidentally dislodged one.

Jan 09, 2010 | 1999 Mercury Sable

1 Answer

When I turn on the air conditioner it is blowing hot air as if the heater were on. Could it be a fuse? It was working fine yesterday.


heater core is going bad my dodge ram truck did the same thing for about three months then steam startedcoming out of the vents it was antifreeze i have not fixed it yet i just bypassed it for now cause its hot and i have to take the dash completly out to get to it, and yes my airconditioner was blowing out hot now immediatly after i bypassed it blows cold again.you have to find where it goes into the motor on both sides so follow the hoses from firewall then buy a 3ft hose to go from one side of motor to the other problem fixed! well that is you wont have a heater until you change the heater core

Jul 07, 2009 | 1999 Mercury Sable

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