Question about 2001 Buick LeSabre

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Toyota Avensis 2003 D4D heater blows cold air cold air when engine rotation is less than 2000 rpm, but when it's over - hot air comes in. Where would be most likely the problem?

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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: Only cold air on passenger side

I would first check and make sure that you have enough Freon in the system, on climate control dual systems only one side will put out cold air if the system is low on Freon. Eventually, both sides will put out warm/hot air if the system continues to loose Freon. As with all leaks the system should be checked and then the leak causing component replaced/repaired.

Posted on Jun 10, 2009

  • 23 Answers

SOURCE: air conditioning in 2000 lesaber

Vent door between the two sides isn't opening or the flex hose going between the two is off.

Posted on Jun 16, 2009

  • 400 Answers

SOURCE: 2000 buick century blowing hot air on one side and

The temperature actuator has gone bad. You will need to replace and have it recalibrated. You could try and disconnect the battery for a few hours and see if it will reset it's self. But you will be in the same boat before too long. And will eventually need to replace it.

Posted on Jul 01, 2009

bozcro
  • 867 Answers

SOURCE: 2000 Buick LeSabre heater only blows cold

the climate control thermostat is not opening the valve to let the warm coolant in

Posted on Nov 29, 2009

  • 731 Answers

SOURCE: My AC blows hot air out the driver's side and cold

My 02 Century has dual temp controls . One for driver for passenger. Make sure you don't have the dual climate enabled and just set for heat on your side and AC on the passengers

Posted on Apr 04, 2010

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1 Answer

2000 caddy Seville ...after starting and engine warm turn on the heater and it blows cold air. Fan works / waiting for hot air and then all the sudden it kicks in. Engine at normal temp


Low coolant, if there is an air pocket in the engine it will make it to the heater core. Once there , the air coming out is cold/cool. Once the coolant fills the heater core, it gets hot. If the coolant is fine hot or cold, then have the HVAC system scanned.

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Why no heating


Low coolant has created a bubble in the heating system, some systems need a vacuum pull to fully purge the cooling systems of air pockets OR there is a blend door that is stuck in the heater plenum not allowing the air flow across the heater core, general answers, don't know this car in particular.

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Toyota avensis 2007 heat not working properly, blowing cold air. Can you help?


check heater tap under bonnet and make sure it opens when controls set to hot and engine running

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My toyota avensis d4d 2003 heating problems,it blows cold air on drivers side but nowhere near warm as it should be,any suggestions


My Toyota is a 2007,avensis T180,a got problem with the heating,takes time till is warming up,so i have to drive the car for 2-3 miles to be able to use the heating,which i think is not common,also when i want to increase heating between that time to 22 or more degrees,then acceleration goes up it self with out to touch pedal with the foot.Please any help from somebody who know something about this.

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2004 toyota celica will not blow hot air for twenty minutes


If the engine temprature does not reach the normal level as it used to, it may be the coolant thermostat.

Iif it does, it could be air diverter gates not working properly, cold air blowing at a a light could point to that. The diverter gates are located under the dash.

It also coul be the valuve that controls the water to the heater core, but unlikely cause of the cold air at a light.

Jan 11, 2010 | 2000 Toyota Celica

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Toyota Celica gts 2000 blowing cold air when heater is on.


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Toyota Avensis T99


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1 Answer

Heater blows cold air


With the car warmed up,feel the heater hoses,are they both warm/hot near the firewall in the engine compartment?If they are both warm/hot,then the heater core should have circulation through it and it may be a "blend door" issue in the heater a/c assembly.If they are not warm/hot then the heater core could be dirty and plugged up and needs to be flushed.
If the above does not help,a drain and vacuum of the cooling system and vacuum refill will remove any trapped air.
Sometimes,clamping off the top rad hose and holding the engine rpm at 2000 rpm will force trapped air out of the heater core.(Watch temp gauge when trying this)
Lastly,a NEW thermostat doesn't mean its working correctly.

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