Cold air from heater?

If it is a water pump problem, you should be having overheating issues. Did you check if the heater valve is operating correctly? Is the vacuum hose connections correct and are there any leakages? This guide can help us fix it.

https://www.2carpros.com/articles/car-heater-not-working

Please run down this guide and report back.

Havent had any over heating problems. The heater valve is working correctly. Where would any vacuum hoses for this situation at? Ive tried all the buttons for the cables for the climate control. They're all working. The hose going to the heater core is hot, the return (?) hose is cool to the touch. Ive made sure the heater core isn't clogged, (I pulled it out and connected a hose to blow through it) there are no leaks in the heater core. How would you recommend bleeding the coolant system of air? Thanks for your help and your input.

When engine is cold, remove radiator cap and checkcoolant level. If it is full, there is no air in system. If it is low, top it up, start engine with radiator cap off. Run engine for 5 minutes and top up if necessary.

Close radiator cap and run engine until fans comes on at least 2 times. Allow engine to cool and recheck coolant level.

The return hose being cold indicates coolant is not flowing. Did you check the hose to water passage for clogging?

Pull out the hose going to the heater core and use a water hose to connect to the heater core. If water comes out of the hose from engine, it is not clogged.

If uou had used air to blow through the heater core, it would not be accurate. Use a water hose to test. If the volume coming out is fast, then it is good. You can try back flushing the heater core. Apply the water hose to the return pipe from heater after taking off both hoses.

I flushed out the heater core and the system started working again I think I had air stuck in it.

Heater problem
1993 Honda Accord Automatic

I have got a problem with the heater, at this present time the car only blows through cold air, i have changed the thermostat but this does not seem to have solved the problem. what else could this be, i was told the water pump may need flushing through but what pipe do you take off to do this, i hope your experts can help...............thanks mark

Water pump does not need flushing, it doesn't retain any antifreeze, it probably needs replacing.

Heater core on the hand does need flushing from time to time. Locate the two heater hoses going through the firewall into the passenger compartment. Most of the time they are two different sizes, so you won't mess up installing. Undo both hoses, and run water through one and out through the other.

Can someone tell me why do I have to hit this black box under my glove capartment in order for my heater to come on? Also sometime it works if I hit that box and sometimes it still won't come on. Can someone pleae help me?

Hi mzvanessa,

The blower fan motor is on its way out due to carbon brushes wearing off. Soon the motor would not start working anymore no matter how hard you bang the blower motor housing. A replacement of the motor is necessary to resolve the problem.

Should I just tell soemone I need my blower fan moter replaced? Or is it called something else? is it worth fixing becasue my car is so old? Does it cost alot or is it a reasonable price?

Yes, if you tell them what happens and needs to replace the blower fan motor, they would understand.

The book time for replacement of the motor is 2.3 hours if equipped with A/C.

If without A/C, the book time is 1.3 hours.

Our database does not have any listing of the part price so I am not able to let you know.

Labor time and parts prices varies region to region so it is best to get a quote from local shops. Ask around and you should be able to get an idea what it would cost.

1993 Honda Accord heat will not get hot when driving. The heat works when idle, but gets cold while driving.

How come the heat will work when in idol, but won't work when driving?

Check the thermostat and coolant level-start here

Heater problem
1993 Honda Accord 4 cyl Automatic

the problem appera when it is raining...as it rains.. i turned on the heat for the front screen and the back..when i turn wiper on.. it leave vapor on the screen and i can't see anything at all. i dont know if that is the problem with the heater or the wiper.please reply needed..thanks in advance.

Hi Sauri

What is the outside temperature ?

if very cold it may be freezing rain

otherwise it may be the air con is overwhelmed, especially if several passengers who may all be wet.

Turn off the a/c select outside air select windscreen and wind the window down a little


Regards
Don
New Zealand

Heater problem
1992 Honda Accord 300000 miles
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The heater absolutely does not work. It worked yesterday when I shut the car off. This morning, I warmed it up for 10 minutes before I drove it. The temp gauge (for the engine) shows my engine has warmed up but there is no heat coming out.

Does the fan blow air or is the air just cold? Might want to look under the hood on the heater hoses, there should be a valve that lets hot air in the car, might have a cable problem or just be broken

Heater blows cold air

Find the thermostat-replace it and check the heater hoses and core if its clogged-up. Coolant level filled.

Make sure sure the water pump is pumping that coolant through out the engine. Also could be a clogged radiator.

hello i have my honda accord 1992 ex the heater yes stop work i dont know isf is the blower swich or i dont know

Is the blower motor not working?

yes is not working sometimes work

When it isn't working, you need to check to see if there is power to the blower motor itself. Check that and let me know what you find.

For about 3 weeeks now my heater has not been working. My back defroster works fine. The front one, though, barely works which makes it hard to drive, especially in the snow. But there is no heat coming out inside at all. There is sometimes a smell coming from my engine but I know nothing about cars or how to fix them...if you could help me out that would be great!
Kelley

If the blower blows cold try this, Check or replace the thermostat Try warming the Vehicle, then carefully feel the heater hoses, are they both hot? If one is cooler than the other, You need to flush the core, or a replacement job on the heater core. Also if the system has a heat control valve on the heater hose, make sure it is working!

I have an '89 Honda Accord, Manual transmission, around 190K. Recently replaced the Radiator, thermostat, upper radiator hose. Since then (although I may not have noticed it before) I have had a problem with the engine temps spiking up to the top, and the indoor heater only blows cold. Then the heat comes on inside and the engine temp drops. I have checked the radiator hose while the engine temp gauge is up, and it seems to be heating normally, so it doesn't seem like the thermostat, but I could be wrong. The fluid level seems fine.

Help!

-L

It sounds to me like you have air in your system.

You may have air pockets in the cooling system, to get this out just park on a steep hill, or jack the front end waaay up, make sure the engine is not already hot, and start the car with the radiator cap off. If this does not work make sure of a couple things: The radiator fan is working properly, the heater core hoses are not clogged (pretty easy to check, take both sides of the hoses off and put your garden hose up to one end) trust me, you will know if it is clogged. Last thing to check: there is a small coolant line that runs behind the intake manifold to a check valve. These rust out all the time. The hose then goes to where the intake manifold meets the head. Hope this helps.