Question about 2001 Daewoo Lanos

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Heater works but does not blow hot air on to windscreen.

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  • Anonymous Jan 07, 2009

    My heater works but air only comes out of the main vent in front of dash,turning control knob has no effect.

  • elizabeth703 Jan 23, 2009

    First my partner removed the switch panel and found a broken part so that the air couldnt be diverted up. He fixed it with wire. Then he found a leak into the passenger footwell so water wasnt getting to the heat exchanger and there wasnt much heat. Radweld sorted that out. Now everything works!

  • barryhcoomer Jan 26, 2009


    • i have the same problem with the heater the only thing to do is to move the plastic bracket where all of the cables are located in the footwell until you can find out which cable has either broken or streched the plastic bracket can be very stiff but a good sokeing of wd 40 useualy puts it right

  • kevin carpenter May 11, 2010

    dose heat blow any where out the vents on the floor. if there no heat blowing any where may have bad blower mtr. if there is heat coming from any of the vents then there is a problem with the mode doors not switching to the correct postion . may be a vauccmn problem our a ele problem

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Look underneath the drivers foot well and you will see that something has snaped on the cable put your hand underneath and push it upwards you will have to leave it like that for a bit because i have just found the same thing and dont know how to fix it yet

Posted on Jan 19, 2009

6 Suggested Answers

onyeredson
  • 404 Answers

SOURCE: heater only blows cold air but hoses are hot

Hi!
It appears we have an Air lock scenario and you will need to perform a system Bleed.
Park the vehicle on level ground, when cold remove coolant filler cap, start engine and leave to idle, turn heater on full and blower to max. When engine reaches operating temperature watch and listen near coolant filler, keep clear as gurgling and hopefully a boil over should occur. Top up with very warm coolant and wait as it may do it again.
Check for heat inside vehicle if warm replace coolant cap but keep an eye on temperature gauge as the ~Air lock may have moved on from heater matrix/core so proceedure needs to be carried out again from COLD.
If persistent boil ups/over attention must made in the cylinder head
or gasket area, or possibly water pump?
Please press the Blue button to appraise my FREE Efforts, Thank You!
Paul 'W' U.K

Posted on Mar 01, 2009

OLDERQT
  • 1 Answer

SOURCE: 93 gmc sierra heater not working

THERMOSTAT REPLACE IF NOT SEE IF HOSES ARE CLOGGED SHOT OF AIR COULD HELP OR DISSCONNECT BATTERY CABLE 10-15 MIN CONNECT BACK TRY HEATER

Posted on Jan 04, 2009

  • 217 Answers

SOURCE: '98 S-10 heater blowing cold air - not hot air

will the air flow switch from floor to the mid to defrost? if so then we have a problem with the tempature door actuator. easy to replace just in tight place. Keep me posted for more help or if this was any help thanks

Posted on Jan 31, 2009

bunnydawg
  • 5158 Answers

SOURCE: mercedes w202 heater control unit not responding

there is a vacuum hose off that controls the vents

Posted on Mar 03, 2009

localwonder
  • 6784 Answers

SOURCE: heater is blowing but its cold air not hot air 2000 expedition

Make sure the heater core is in the open position by using the shut off valve and turning it to open. next, you may have a malfunction in the direction door the directs the air flow in the dash. a lever may have become lose or separated. may be a bad servo motor not directing the door to move to the heater position. i would start by checking that shut off valve first on the heater core.

Posted on Mar 13, 2009

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

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1 Answer

Heat does not blow onto windscreen but blows through other vents - whats wrong


What make an model an year vehicle do you have ? The air blows out of the floor vents an center vents but not defrost ? Possible mode actuator , stuck mode door ! There is a door inside the heater / A/C assembly that directs the air to the desired position . These doors can be moved by a vacuum operated actuator or an electric motor . Sometimes thing's put on the dash end up inside the heater box , fall through defroster vent ! Pens , pencils etc.. Depends on the make vehicle an system , manual , or automatic climate control . Some of the newer vehicles the HVAC system as it is called , the control panel is a electronic control module an can store DTC'S - diagnostic trouble codes !

May 07, 2015 | Cars & Trucks

1 Answer

Heater doesnt work


To troubleshoot this types of problem,click the link below :---
Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html

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Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows intermittently and temp gauge goes erratic?

http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

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Heater blows cold?

http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

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A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem?

http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html

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This will help.Thanks.

Mar 27, 2012 | 1994 Volvo 960

1 Answer

Air works great but no heat just blows cold air


For this types of problem,i suggest you to check this help links:----Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html
---------A/C, heater, defroster fan, not working?http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html
--------Heater problem?http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html
---------Engine Overheats and heater blowing cold?http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
-----------Heat blows cold on drivers side and hot on passenger side?http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html----------------This will help.Thanks.

Sep 05, 2011 | 2007 Suzuki SX4

1 Answer

My car does not blow hot air through the vents. On the windscreen its okay. The air coming is smelly. What could be the problem. The car is 1998 model


if it smells sickly sweet and there is a fine mist you most likely are leaking coolant into the heaterbox. generally this means a leaking heater core.

Jan 23, 2011 | Volkswagen Passat Cars & Trucks

1 Answer

I have a 1998 Honda civic 1.4i.Turned car on this morning heater on full to defrost windscreen.After 10 minutes still blowing cold air!No noises etc and all settings work but still cold air.Help!


Are the radiator hoses from the engine to the firewall hot? If so, it's probably not the thermostat, it's probably either the heater core or the controls not allowing the heat to get in. Best advice I have (because I had to replace the heater core in my car last year) is to buy a Chilton repair manual for it. it walks you through everything. If it is a heater core, be prepared for a long job...

Nov 28, 2010 | 1998 Honda Civic

1 Answer

Mercedes w202 heater control unit not responding


there is a vacuum hose off that controls the vents

Mar 03, 2009 | 1995 Mercedes-Benz C-Class

1 Answer

Hot air not blowing on windscreen.


The switch was broken that diverts the air to the screen vent and we accessed it via the switch panel. Clever partner wired up the broken bit.

Dec 13, 2008 | 1999 Daewoo Lanos

1 Answer

Windscreen air vent not blowing air


does the heater blow on different setting? i.e into the cabin?
if it does check the hose at the back of the dash hasnt come off and is stopping airflow to windscreen.

Oct 23, 2008 | 1999 Ford Escort

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