Question about 2001 BMW 330

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Cold air coming from car heater

Toyota Celica - antifreeze is ok - water in radiator level ok. Blower working fine. Is it thermostat?

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Feel the smaller two radiator hoses that go to the heater core near the firewall after engine has ran about 20 minutes and if these 2 hoses are cold to the touch then thermostat needs replaced. if they are hot then problem is with temperature selector

Posted on Jan 09, 2009

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Posted on Jan 02, 2017

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How do you properly bleed the coolant system on a 1994 Toyota Celica 1.8 stx?


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My 2008 ford ranger has a heater that wont get hot.w/temp knob full hot, cold air. Checked fuses. I heard about a "door" inside the heater that can get "stuck", but just rumor. It...


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Why is the heater in my car not working? Ken Mattson, owner of Len's Automotive in Bellevue, Wash., says a car heater can stop working for a number of reasons, including: A low antifreeze/water level in the radiator due to a leak in the cooling system. A bad thermostat that isn't allowing the engine to properly warm up.11 Dec 2013

Why Isn't My Car Heater Working? ' Angie's List

https://www.angieslist.com/articles/why-isnt-my-car-heater-working.htm Search for: Why is the heater in my car not working?
Why is my car heater not blowing hot air?Hot coolant from the engine passes through a heater core, which looks and functions a lot like a small radiator, and a blower motor forces air through it. ... It's also the reason that a plugged heater core, stuck thermostat, or air in the cooling system can all cause a car's heater to blow cold.9 Jul 2017When Your Car Heater Blows Cold Air - Lifewirehttps://www.lifewire.com/when-your-heater-blows-cold-air-534667
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What are the symptoms of a bad thermostat?A motor with a bad thermostat will run fine for the first few minutes, then overheatrapidly. Other symptoms include the engine and radiator making a rumbling, gurgling, boiling sound: like a steam pipe knock, if you've ever heard one of those. A thermostat sticking open can make your heater not work in the winter.Auto, Car, Truck THERMOSTAT Repair bad thermostat symptoms
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Nov 19, 2017 | 2008 Ford Ranger

1 Answer

Teperature gauge running hot and heater not working


If the car is hot and the heater blows cold air your thermostat is stuck shut or your radiator is really low on water/antifreeze check when engine is cold hasn't been ran like overnight take off the radiator cap and if it is low add so antifreeze/water if heater still blows cold air or water level is ok your thermostat is stuck shut and needs to be replaced.

Apr 08, 2010 | 2004 Hyundai Elantra

3 Answers

Car warms up just fine but the heater blows cold air


both hoses is hot signifies thatcoolant circulation is just fine check the blend door actuator it might be stuck.pan the heater temp controller from hot to cold do you feel any change in temp of the air from the blower?if you dont feel any change check the blend door actuator

Jan 11, 2010 | 2002 Ford Taurus

1 Answer

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

1 Answer

The heater does not blow hot air just cold air all vent controls work.if running air conditioning can control temp with the hot cold control


The first thing to check is the coolant (antifreeze) level in your radiator. If this level is too low it could cause your heater not to blow hot air. Check this when the engine is cold by removing the radiator cap. Do not remove the radiator cap when the engine is hot. If you do, you run the risk of getting scalded by hot water and steam that can shoot out the top of the radiator. The radiator should be completely full. If it's not, fill it up with a 50/50 solution of antifreeze and water. Also make sure the radiator overflow tank is filled up to the full mark. This is usually about halfway up the tank.
If your coolant level is ok I suspect you may need to replace the thermostat. It may be sticking shut and not letting hot water get to your heater core, or it may be sticking open and preventing your engine from reaching its normal hot operating temperature. A thermostat is relatively inexpensive and usually easy to replace. Just make sure you follow the instructions and put it in facing the right direction. If the thermostat is ok then you may have a blockage in your heater core. Replacing a heater core can be a difficult job on some car. If this is your problem I recommend taking the car into a garage to have the repair done. I hope this helps you out.

Nov 16, 2009 | 1998 Ford Taurus

1 Answer

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


nothing try back flushing heater core, they clog up due to litle water preasure,you might want to flush cooling system if you already havent, hope this hleps.

Oct 06, 2009 | 2000 Toyota Celica

1 Answer

My 2004 malibu does not blow hot air when in the heating position. the blower works and only blows cold air.thermostat seems fine.


What makes you think the thermostat is fine? First thing I would check is the level of your antifreeze to see if it's up to the correct level. If it is then thermostat is my next culprit and if it is in fact OK then it might be the water pump or plugged up heater core.

Sep 30, 2009 | 1998 Chevrolet Malibu

1 Answer

98 Celica overheating problem


c7d7b55.jpg Cooling Thermostat.
Look along the radiator hose where it enters the engine. This controls the water temperature.


toyotacelicathermalfanswitch.jpgToyota Celica Thermal Fan Switch The Toyota Celica thermal radiator fan switch is usually located in the radiator or the engine block and has 2 or 3 wires coming from the unit. The 3 wire switch has a dual sensor for dual speed radiator fans. The Toyota Celica thermo fan switches come in the factory temperature settings and also come in cooler thermostatic settings so the fan will come on at a lower coolant temp.

The Toyota Celica cooling system is made of aluminum components and requires a Phosphate free coolant. DO NOT PUT an over the counter antifreeze in your Toyota Celica, as it will ruin the radiator and water pump.

Feb 19, 2009 | 1998 Toyota Celica

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