Question about 2001 Daewoo Nubira

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Heater When turning on the heater inside the car it only pumps out hot air! What do I need to do! Hopefully i can fix it myself as so far the car has cost us a fortune with one think and another I hope you can help Adrian

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  • Juan Guillen May 11, 2010

    Hi...

    I need better explain about your problem.

    Because Heater is for Hot air.

    And A/C is for cold air.





    Thank you.

  • Juan Guillen May 11, 2010

    Hi.....

    I'm sorry I don't understand your question. Because heater is for hot air.

    A/C is for cold air.

    Please giveme more info.

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Sounds like the heater flap is stick open

Posted on Nov 04, 2010


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The cable linkage is probably broken so that when you turn the knob to cold the heater flap doesn't move. Put your hand under the bulkhead and you should be able to move the flap.

Posted on Oct 24, 2008

If your car is hot it should blow out hot air see if tem p is ok make sure the dial for hot and cold is tuning
the valve for to let in the heat

Posted on Oct 14, 2008

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What's your problem?I have a 1996 Chevrolet Suburban. The AC is blowing out hot air. I have had the truck for 6 years, every Summer its the same thing. The ac does not get cold, I take it to the m


To clarify - - if the truck has rear and heat, you have two heater cores and two evaporator cores. The evap cores carry the freon.
If the leak is in the evap core in the front, the price is probably right.

Jul 06, 2012 | 1999 Chevrolet Suburban

1 Answer

Heater blows cold air


generally if your heater blows cold air, three things can cause it. 1: very low coolant (anti-freeze) levels, your car would generally overheat tho if at those levels. 2: car HVAC systems have a fin inside which turns to allow either your hot or cold air to pass thru, to check for this just turn your air con on high with the temp turned to hot, this will go cold if this is the case. 3: blown heater core. this is generally a costly repair on any car as they are generally installed midway thru assembly, so removing parts to gain access is a time consuming and difficult task.
All these issues are quite difficult to repair if you do not have the appropriate level of training. I would reccomend taking your car to your local mechanic. although due to the complexity of fixing a heater core ( usually you have to drain your A/C) this can be a very expensive repair.
i hope i have helped cheers

Jan 11, 2011 | 2002 Dodge Grand Caravan

3 Answers

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.

Dec 05, 2009 | 2001 Dodge Grand Caravan

1 Answer

'89 Maxima car heater stops blowing warm/hot air


You will have an 'in' and an 'out' hose going to the heater core. Run engine until hot, these two pipe should be both quite hot, if the out pipe feels cooler than the in pipe then it would seem the core is blocked. You say you have no leaks so maybe it would be worth removing both heater pipes, fix one side up to the water main and gently pass water through it. Hopefully lots of Brown sludge should come out.
If both pipes feel hot then the core should be ok. This means it will be an air-distribution fault and maybe the flap is stuck that changes it from hot to cold air.

Nov 18, 2009 | 1992 Volvo 240

1 Answer

Over heating


The radiator needs to have a rot out or get replaced. Over time the water deposits build up inside radiator and affect heat transfer.Keep your thermostst in. If you remove it your gas miledge will drop because the coolant temp sensor will tell the computer that the truck is not warmed up yet and the computer will tell the fuel injectors to ad more fuel. also in winter your heater will take a long time to heat up. Joe ASE Master Tech

Mar 04, 2009 | 1995 Toyota 4Runner

1 Answer

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

Feb 28, 2009 | 1996 Mercury Grand Marquis

3 Answers

1998 xj8 heater only works when engine at higher revs


There is an Electic Water Pump for the Heater that is located under the hood near the left fenderwell. If it's not a fuse, then likely, this pump is bad. Mine went bad in my 1999 Jaguar XJR. It runs close to $400 for the pump, so hopefully that's not the problem. Price does not include labor.

Since I'm comfortable with Electronics, I replaced the brushes in my motor and it works fine now. Heat all the time and only cost $1.00 You may be able to find a shop to rebuild the motor for you at a fraction of the cost.

Feb 25, 2009 | 1998 Jaguar XJ8L

2 Answers

The heat in my 1992 Jeep Wangler is not working.


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.

Feb 04, 2009 | 1993 Jeep Grand Cherokee

1 Answer

1989 NISSAN MAXXIMA LOW HEAT IN CABIN


Could be a blocked heater core (the part inside the dash that the hot water runs thru), or the heater blend door motor not operating (the part that allows the air from the heater into the vents), or a broken blend door shaft, or something similar. Most of these would require a workshop to attend to them, although you could try flushing out the heater core, by removing those hoses you spoke about from the pipes they go onto at the firewall and directing water at a reasonable pressure (not high pressure like a steam cleaner) into one of the pipes to see if you get a whole lot of crud come out. This may or may not fix the problem and I recammend you take it to a garage and if cost is an issue just tell them you want it diagnosed, and to advise on a price to repair. Give them an upper limit on what you expect to pay for diagnosis as well.

Oct 21, 2008 | 1989 Nissan Maxima

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