Question about 2000 Honda Odyssey

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Where is drain trbe for heater

Checked climate control, water is hot, was told to blow out drain tube dont know where is it, has had air block before

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I've never known of any vehicle to have a heater drain. Most do have radiator drains witch is the same fluid, it is on bottom of radiator.

Posted on Dec 01, 2014

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Posted on Jan 02, 2017

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SOURCE: Hot air blowing with climate control off.

you may have an air mix motor problem or a mode control motor problem. there is a test you can do that may help: 1. turn the ignition switch on. 2. turn the fan switch off. 3. press the recirc control button to select recirc (recirc indicator light comes on.) 4. press and hold the recirc button to select fresh (recirc indicator goes off). Continue to hold the the button down until the recirc indicator comes on for two seconds and then goes off. If the system is okay, the recirc indicator will stay off. If there is a problem, the recirc indicator blinks a code to indicate a fault. 1 blink=air mix control motor/circuit fault. 2 blinks= mode control motor/circuit fault. 3 blinks= evaporator temp sensor circuit fault. In case of multiple problems, the recirc indicator will only blink the code with the least number. write back if this test shows a code and we'll go from there.

Posted on Feb 05, 2009

  • 225 Answers

SOURCE: I have a 2004 Honda Element. The heater will not blow hot air.

the heater core/motor is broken just get it replaced

Posted on Nov 03, 2009

  • 55 Answers

SOURCE: heater blow cold air in my 1994 Honda Accord (4

Yes clogged heater core may be the answer in your case .


Posted on Dec 11, 2009

  • 84 Answers

SOURCE: 1999 Honda Accord heater not blowing hot air

Sounds like a thermostat or cooling system issue. Change the fluid and the thermostat. It will do your engine good so it's money well spent.

Posted on Dec 31, 2009

  • 480 Answers

SOURCE: my 1995 honda heater is

try back flushing your heater core find the 2 hoses to the heater and start the motor let it run for a bit feel the hoses 1 should get hot and 1 should be a little cooler the 1 that gets hot is the inlet and the cooler 1 is the outlet remove them after the motor has cooled down and use a garden hose to back flush the core flush water through the outlet you dont need to use high pressure if you do there is a chance the core can crack and leak.

Posted on Dec 30, 2010

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1 Answer

NO HEAT. A/C works fine. Air blows but no warmth. blows cold air for front defog and cold air blows when temp cranked high 1-5


warmth comes from the heater in the car
if it is climate control check the climate control module
check for heater control in the vent settings as the hot water tap may not be turning on

Sep 20, 2015 | Pontiac Grand Prix Cars & Trucks

1 Answer

Why is my heater blowing cold


Most likely it is the heater control valve that shifts air from blowing across your heater core to your air conditioner core.

If your fan works and your car is fairly new..meaning your heater core isn't dirty and full of craap...then it is the climate cotrol valve.
If you are lucky, it might be a thermostat that is bad and blocking hot water from entering your heater core. Bottom line, if hot water doesn't circulate thru that little heater core, you won't get heat.
You might be able to look under the hood and grab the hot water lines that go thru the firewall and feed your heater core. If they feel cold to the touch after engine has warmed up, then you aren't getting circulating water to the heater core. If they feel nice and warm, then the heater core is fine, but your climate control valve has closed off the fan that blows across the core to disperse heat into the cabin

Feb 24, 2015 | Cars & Trucks

1 Answer

How to stop water from pass side floor


Hot or cold water? You need to determine whether it is the A/C drain or leaking heater core. we will start here with A/C. There will be a drain hose going through the firewall into the engine bay. Push a piece of wire up the drain tube then blow softly with compressed air or get fish tank tube put it in drain tube & blow. If you free blockage water will pour out of that drain tube. If the tube is blocked the water will go in the car But a leaking heater will do the same.

Jul 01, 2012 | 2001 Hyundai Elantra

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When i cut the heat on....the driver side vent blow cold air and the passenger side blows hot..both of the heating hose are hot...whats the problem in a 1999 buick park ave


think the heater core is partialy blocked ,drain coolant antifreeze and fill with water then add some caustic soda say a half a cupfull then run car for a day or two till the heater starts blowing hot then give a good flush and refill with the antifreeze ,cant say it will work but their is a good chance it will work

Sep 19, 2011 | 2000 Buick LeSabre

1 Answer

A/c works on and off, blowing hot air replaced pressure switch,orifice tube and recharged


If it is blowing hot air, your climate control door isn't shutting off the heater core air inside the car. Take it by a decent auto repair center to check out the door.

Jun 14, 2011 | Ford F-150 Cars & Trucks

2 Answers

Heater only blows hot air thru one vent - all other vents blow cold air


This is my best guess with out knowing the year of the vehicle.
If you have a climate control system, ( driver's side, and passenger side heat & a/c setting ), you likely have an issue with the blend door being stuck, or a bad actuater, ( this moves the blend door )

If you do not have a climate control system, you likely have a trap/flapper door sticking, or some blockage in the duct work.

I hope this helps you.

Feb 02, 2011 | Honda CR-V Cars & Trucks

1 Answer

My heater doesn't seem to want to get hot. I have done a radiator flush with new antifreeze, changed the thermostat and it's still blowing out hot air.


If it's not blowing out hot air, the blend door may be the problem on the 1990 Isuzu Trooper.

Heater Water Control Valve REMOVAL & INSTALLATION On early models the heater control valve was part of the heater core inlet. To replace the control valve, remove the heater core as outlined in this section. Remove the control valve from the heater core, being careful not to damage the core. Use new gaskets when installing new valves. The remainder of the vehicles are not equipped with heater water control valves. They use heater unit doors to regulate the amount of heat entering the vehicle. --- I would check that both tubes running to the heater core are getting hot. If they are, then there is a blend door problem. If both tubes are not getting hot, the heater core is blocked somewhere or the heater control valve, if so equipped, is in need of replacement. Good luck on this repair. prev.gif next.gif

Oct 28, 2010 | 1990 Isuzu Trooper

1 Answer

All of a sudden, my 2004 Ford Taurus heater control doesn't work. Hot air ALWAYS comes out, no matter where the temp control is set. Even if set in AC mode the air is VERY HOT! Help!


The valve (called the heater tap) which controls the hot water flow works from engine vacuum. The climate control unit turns vacuum on to close the valve and turns vacuum off to open it, if the vacuum tubing or vacuum service valve has failed, the tap will be open allowing hot water to flow. The same result applies if the heater valve itself has failed (which they do --regularly) Trace the water hoses from the enginebay firewall under the hood and you should find the valve. Check for cavuum at the valve with the climate control set to its coldest setting. If you have vacuum at the valve, replace the valve. No vacuum points to the loss of vacuum source or a faulty vacuum service valve with will be electrically operated from the climate control. Trace the vacuum hose from the heater valve back to the vacuum service valve and check if the valve has vacuum supplied to it. No vacuum means a vacuum hose has blocked, has a hole in it or has been removed from the manifold. If the electrical valve has vacuum, check for power. If power is present but still no vacuum at the heater tap, replace the service valve. If power missing, check fuses. If both wires to the valve show power present, have the climate controll unit checked by a professional..

Oct 31, 2009 | Ford Taurus Cars & Trucks

1 Answer

2001 Acura TL Climate Control Blowing only Cold Air.


Ok it may be that the heater core bypass valve isnt opening. All that valve dose is when you turn the climate control to heat it opens a valve that allows hot coolant from the engine to flow through the heater core. What I would do is check that. It will be on the left side (passange) of your engine bay.You will see two black coolant hoses next to eachother and one will have a black box with a wire that runs to it. Have someone move the climate control from hot to cold to hot back to cold. If you dont see the wire move then you can move it yourself to open the valve.

Let me know if the valve opens or not using the climate control.

Dec 15, 2008 | 2001 Acura 3.2TL

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