Best Answer

Hi. There are two possibilities causing this problem,if your car is A/C equipped,there is usually a diverter door that is operated by a vacuum motor or diaghram,vacuum is switched by heater or A/C control,another possibility is outside air is usually ducted in from an opening under the lowest part of windshield,make sure this is not blocked,last,on vehicles with high milage,gum from antifreeze lines heater core passages causing little or no heat exchange,more than 90% of the time this is cured by disconnecting both input and output water hoses from heater core and using an air gun giving a good air blast to water ducts,if this does not work make sure engine water temp is adquate,a motor block reverse flush may be necessary,Good Luck.

User Avatar

Wiki User

โˆ™ 2008-10-29 02:32:10
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you fix a car heater that gets power to the blower but does not blow out any air?
Write your answer...
Related questions

Why does the heater in your 03 dodge ram blow cool air only?

i can turn the blower speed on low and the air gets warm , but not hot . then i can turn it to high and it get even cooler Check your thermostat, it may be stuck.

2000 grand am sometimes heater blower works sometimes not - any answers?

If a 2000 Grand Am sometimes has the heater blower working and sometimes it won't, the problem could be with the heater relay switch. The heater relay switch lets the heater blower know when to come on and when to go off. In most vehicles this switch is behind the glove compartment. This part sometimes gets corroded from condensation in this area.

Why does your car shake when you turn on your heater?

There is a large amount of leaves or pine needles in the blower wheel. It most likely gets worse the higher the blower setting, the faster it spins...........

How do you remove heater motor from 2006 Chevy Trailblazer?

It's right behind the glove box. However you must be sure that it is not he fuse or the blower motor resistor that has gone out on you first. You can test the blower motor with 12V power as that is what it gets on high speed. Trailblazer enthusiasts forum.

If there is no air moving through the vehicle when the heater is engaged could that be the heater blower motor is so where is it located and how difficult is it to change?

-yes-if it work on hi only, check blower resistor-did you check the fuses-hit the blower with a hammer and see it that gets it going. if so, replace-has the blower been noisy lately? if so, replace-what kind of car is this? edsel? corvair? skyline?

How would you fix the heater in a 1991 Dodge Dakota if it gets warm but does not blow air?

your blower motor has gone bad In the firewall on the passenger side of the truck is the blower motor speed resister coils, they burn out alot. I could not find one for my Dakota so I got one from a dodge caravan and I changed the wirring, that is the most likely problem

What would cause a 1996 Dodge ram heater gets warm but when you turn Blower up it goes cold?

If the engine is getting up to normal temp, the heater core might be plugged. Heater core is not plugged and normal operating temp!

Why would when you put the heater on it heats then goes cold When you push hard on the dial it starts to blow hot when you let go it gets cold even when it is on hot?

heater switch needs replaced

Can you substitute power steering fluid for ATF fluid?

NO! Power steering fluid gets too hot and you will blow your transmission.

A person shovel a driveway and then the exact same size driveway gets shoveled by a snow blower in less time who has done more work the person or the snow blower and who has more power?

They have both done the same amount of work. But the snow blower has more power and does the same job in less time.

What gets hotter when it gets colder?

a heater

Why do 2000 Toyota Echo headlights dim when heater gets turned on?

because before they were not dim The heater could be drawing too much power or your alternator isn't producing enough.

Why is the heat not working on your 5.3L 1999 silverrado Pickup 4x4?

Sounds like your blend door may be broken. the blend door opens and closes on the heater core to allow heat into the cab by letting the air blow over the heater core. The heater core basically looks like a small radiator and when the blend door gets opened up, it allows to air from the blower motor to blow through the heater core fins and that heats the air before it is pushed out the vents into the cab... Check out Those guys have videos on there of what I am talking about. It may not be your blend door though. Could also be the blend door motor or the dial to turn from cold to hot... I would check that blend door first though...

What does a blower do?

A blower, usually means super charger. It is forced induction ( higher pressure) opposed to the NA engine which gets air through vaccum and weight....This is as simple as it gets!

1995 Sierra 1500 Why does the heater blow warm for a second and then gets cooler?

thermostat, or ots time to flush and fill your anti-freeze. you might also want to check the head gasket

Why would a blower resistor on a 1991 Chevy blazer stop working?

The blower resistor gets overheated and burns out usually because the blower motor is failing also.

What accidents might occur from working in coal power stations?

For one, the coal power station might blow up if it gets too hot, obviously causing an accident. Basically, a coal power station worker's biggest worry is if it will blow up. GO NUCLEAR ENERGY AND BARACK OBAMA

Blower motor rsistor is hot what is causing this?

The resistors are there to give the blower different speeds. To get the blower to run a little slower part of the energy gets dumped into heating the resistor instead of spinning the blower blades.

GMC Safari won't shift from park and blower motor on without key?

The same thing happened to mine with the blower motor. The blower motor is run by 3 resistors and a relay. the first 3 speeds are controlled by the resistors and then when it gets switched to high the relay is energized and it puts full power to the blower motor. The problem is that the relay is stuck in the on position. When it finally does "burn out" you will no longer have the high speed on the blower. The relay and resistor unit is located on the heater box just under the blower motor under the hood. To get at it you have to take out the washer fluid and antifreeze reservoir. It is best to do this with the reservoirs empty. The new assembly is about $70. It is a pain to put in as you may have to cut a new sized hole in the heater box. A template comes with the new unit. As for shifting. Your foot must be on the brake. If you are parked on a hill it can also jam you in park. If you are on a hill try shoving the vehicle up the hill a bit and getting it out of park. Not sure if this is your problem or not.

Heater fan keeps running even after your 1997 Pontiac transport minivan is shut off how do i fix this problem?

The blower motor gets its power through a relay, and it is not unheard of for contacts of relays to stick together after they are de-energized. As well the (BCM) Body Control Module receives its blower operation signals via the heater control switches, and it energizes that relay. There are so many might be's. There are so many relays and modules in these newer vehicles that it takes an active mind to keep them separated as to which does what. Since the blower continues to run, and the blower relay contacts have an unswitched electrical connection straight from the fuse box, you might have a sticking relay. The heater relay is in the engine compartment fuse box, near the battery and washer fluid container. Something funny that I have done a few times, is that I thought the heater fan was running, but it was actually the engine cooling fans that were running. They are meant to run as long as the engine heat calls for it, Ignition on or not.

What is the role of a resistor in an LED circuit?

a resister is to RESIST current flow....if the LED gets the full effect of the power supply, the LED will immediately blow out.

Blow one's trumpet use it in a sentence?

when my brother gets angry it blow one's trumpet

Why does the heater on my Chevrolet 2500 hd duramax not blow hot air.?

The engine needs to be hot in order for you to get got air. On a cold morning, even if you let your truck run for a while, will not get hot enough to blow hot air usually until you drive it for a little bit. When it gets at or near operating temperature there is no reason that it shouldn't blow hot air.

What would cause intermittent problems with blower motor on 1998 Chevy blazer sometimes it gets power sometimes it doesnt. it quits working while on or starts working while on. also wheres the relay?

Check connections at the blower motor, blower motor resistor and at the switch. You may find a melted connection.

Explain what happens when you blow up a balloon?

You blow your oxygen into the neck of the balloon (the end part) and it gets bigger. It gets filled with carbon dioxide and floats.