Elantra XD (2001-06) :: Heater Won't Blow Heat
Dec 7, 2016
2005 Elantra here with 120k miles
Problem: Not heat will come out unless
1) I don't turn on the Fan Motor at all. Very Nice heat will "bleed" out of the vents as long as there is no Fan on - on any setting.
2) Lukewarm heat will come out if I am giving the car gas or revving it. As soon as it goes back to idle or I am no longer giving gas it goes back to no heat at all.
Things I have tried:
Topped up the radiator and tank (radiator has been replaced)
Water pump replaced
No leaks
Thermostat is opening ( Upper hose gets hot, Lower hose stays cold for a while and then gets hot)
Flushed heater core with a garden hose.
Inlet hose to heater core is hotter than outlet hose but outlet hose is not cold to the touch.
Radiator cap has been replaced
Car does not run hot at all
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I just replaced the radiator in my 2001 Elantra and now the heater will not blow warm air. Also the temp gauge on the dash stays at cold.
I have replaced all radiator hoses ...
New thermostat
New thermostat sensor
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I have a 09 santa fe and it just started doing this. when we start it and let it warm up it will get the normal temp and will blow hot air but when we start to drive the thermostat goes back down to cold and it will blow cold air. I have had a problem similar to this before and taken it back to the dealership and they replace the same thing over and over. but this time its not fixing itself and it is staying like this. usually it will fix itself.
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Push A/C button is always on green. The (air speed) 01234 button is also always on green. the Push button turns on and off orange whenever I click it.
Anyways, the AC doesn't blow any hot air... always just cold. I've adjusted the dial to red and have left it there for a long time... no hot air. Any trouble shooting I can do?
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I was driving home on the highway, and my 2006 Elantra did the following things in this exact order:
-Heater started to blow out ice cold air
-Temperature gauge rose, dropped down, and then rose right back up to the red area and stayed
-As I was slowing down to pull over, my tachometer dropped to 0rpm
-My "Check Engine" and "Battery" lights came on
-The car completely died and came to a rolling stop on the shoulder
I am trying to find answers as to what has happened to my car.
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So the heater on my 2001 f150 will only blow through cold air. I thought that I may have a heater core clog so I back flushed it with water until it was coming through clean and unrestricted but that didn't solve the problem.
Now, some things to note are a potential coolant leak. I can't seem to find one but I filled up the antifreeze about two months ago and when I checked it the other day it was more or less empty. I've filled it up again and I will monitor it for the next couple of days.
Another thing to mention is that no matter what setting I have the heater on (ie 'panel' or 'defrost') I get cold air blowing at the passenger side's feet. Is this indicative of a hose leak or something?
Also worth noting is that the intake hose to the heater core gets hot after driving but the outtake stays cool. This is why I originally thought I had a core clog.
Should I be checking my blend door? If so how to I access it?
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Sunday I bought a 2001 f250/5.4 to replace my 91 f250. I didnt drive it yesterday, but this morning on my drive to work the heater was very weak, it seemed to blow warm for the most part, but was barely pushing air even on high. I flipped it over to A/C to see if it blew any harder and it did. Does the blower motor need replace? if so why does the AC blow harder than the heater?
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I've checked just about everything, coolant level is good, engine gets hot, heater control valves moves, blend air door moves, the heater hoses don't feel as hot as I think they should, but the gauge reads in the middle, I burped it thoroughly and still no heat , blower works i actually can switch the blend air door manually, but no change! what am i missing? t-stat was changed too. 2001 sport trac....
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I have a 94 ford Taurus all of a sudden my ac doesn't blow cold and my heat doesn't blow hot. Also every now and again I hear a sound like an alarm clock coming from passenger side??
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The heat works fine when driving but when car is idling there is no heat, the blower is working just blowing cold air, the temp gauge reads normal???
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2004 Elantra - 65,000 miles: Heat and AC works fine when vehicle is moving. At idle or parked it just blows air.
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I have a 2004 Elantra. The blower for heat/ac not working. I did all of this:
Checked interior fuses, all OK.
Checked 30 amp fuse in engine compartment, put a new one in.
Pulled blower motor out and tested with a 12V power supply: worked fine.
Replaced Blower Relay
Replaced Blower Resistor
all of this and still no blower.
The heater control panel on the dash has 3 knobs. When I turn the first to AC...the light comes on and I hear the AC kick in. 2nd knob is blower fan...nothing on any setting. 3rd knob...hot and cold...not sure since no blower.
I am lost at what to do next.
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I have been encountering issues with my heater not providing hot air when the engine is idling. My Elantra has around 121K miles on it. I have not replaced the thermostat, water pump, timing belt, radiator, radiator hoses, or done any coolant flushes.
I checked the overflow reservoir and radiator. I didn't see coolant at top of the radiator so I topped it off as well as the reservoir. It seemed to have fixed the issue for now but I had this similar issue about 5-6 months back. I also topped off the coolant and things have been fine until now.
I checked the hoses and squeezed them to see if I could see any notable leaks but didn't see anything. I checked the overflow reservoir tank and line and nothing seemed out of the ordinary. I also checked the top of radiator to visually inspect for any notable cracks but didn't find anything. Also to note, the coolant inside the overflow bottle was bright green and not discolored.
I did however notice a lot of white chalky residue on the bypass hose below the upper radiator hose and the engine block. My guess is that my upper radiator hose is slowly leaking? Leaking in the thermostat assembly? And I also noticed a tiny puddle of coolant below the lower radiator hose at the engine block. See the pics below.
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Its a 2005 Elantra i dont know the sub model, but they said the heat will be working just fine, then out of no where it stops, at first i thought it was the issue's i've seen on here before about a bad blower, but its still blowing it just goes from hot to cold, and then it will shift back again after x amount of time.
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my Saturn ls does not blow out any heat at all... what would b the problem with the car??
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I have had my 2008 Pontiac G5 since 2009. I got it used with about 32000 miles and it currently has 110,000 miles. It is the basic model G5. I love my car and want to keep it for a long time. It is in great condition except for one problem: the A/C. So it basically only will blow out heat, even if I have everything off. Sometime if I turn the knob quickly from Cold to hot to cold I will get some cold air but only for a few minutes. The thing is I just can't turn it off as it is always blowing out some hot air which makes my car miserably hot in the summer.
Also when it does blow out cold air, the fan is weaker then with hot air. All these issues have gotten progressively worse over the last few years. It used to be that at times I would have A/C for long periods of time when I did the rapid spin of the knob but now the spinning of the knob does not even work. I have had many repair shops to get it fixed but nothing has worked (people have tried new Freon, fixing the door part that flips from hot to cold,etc.) What could be my issue? I want to keep my car but making any long trips is very difficult in any weather above 75 degrees as the car becomes a sauna. I have had this problem for the last 4 summers and just want it fixed already! I want a car with A/C.
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2001 Ford Escape.
Blend door seems to be moving properly...(or at least the control arm is...) Truck gets up to operating temperature quickly enough.
It does blow warm air, but never gets hot...can't keep up with single digit temps. Every thing looks to be operating properly...
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I've only had the car about a month, and love everything about it. . . . but with the onset of cold mornings, I'm not very excited about the luke-warm air coming out of my heater.
It's reminding me of my old B5.5 Passat VR6 wagon and the annual heater-core flush that it required. Of course, the Passat was 13 years old and had 200k on it.
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2000 f150 heater only got warm.
Flushed system, new thermostat, new coolant. Then NO warm air. A/C blows cold. Checked heater blend door and actuator both intact and working. Heater core not leaking, system holds pressure and doesn't leak.
Is there another automatic valve that could be shutting off flow to heater core?????
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I have a 2002 Ford Taurus. When we bought the car the heat worked fine. One day we went to turn the heat on and it would only blow out cool air. We replaced the thermostat and that did not work. The blower works fine it just doesn't blow any hot air out. Also, the driver side seat adjusting control went out. The seat will slide backwards and will raise the seat up and down, but when you try to slide the seat forward it just makes a funny sound. It was working fine and the other day I went to move my seat forward and it wouldn't go forward.
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I thought blend door only adjusted temperature. Mine is manual? System no ECM control. Need defrost....
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