My 2014 Tucson does not heat up in really cold weather like - 25 celsius. Not bad in -2 - 10. The dealership replaced a faulty thermostat when I first complained. They suggested to drive in shiftronic to heat engine, let idle for 5 mins. before driving, and basically said because it is a 2L engine it would take a longer time to heat up. Drove around with the tech after thermostat replaced and he advised the temp in engine was by the book. Of course it heated up well enough for a while but again this winter in the colder weather it does not seem to warm up. I have approached other 2014 owners who advise after about 5 mins. the cabin is warm. when the warmer air does come out of the duct the air flow isn't very strong, even on 4. I am taking it back, what should they be checking. They already think I'm crazy. My husband says if I can't get heat, I should trade it in but I love the vehicle. Never had any problems with other Hyundai cars in my family which we still have: 2005 Accent, 2012 Elantra, 2013 Veloster. Previous to the Tucson I owned a 2005 Santa Fe and didn't have heating issues. Many thanks, "warm" regards. Lesley T.
Use diagnostic tool and check if the flaps are operating properly. did you turn off the ac compressor button on the ac panel?
SOURCE: Heater blower problem
under the hood of the car on the passenger side you will see a round motor sticking up.thats the blower motor there should be 3 screws holding it in place and one plug to unplug.you lift the old motor out and put the new one in in its place
SOURCE: AC quits in my Hyundai Tucson comes back on after 15-20 minutes
it sounds like the dryer is bad, or the filter that goes to the high pressure line. It could also be the pressure switch that goes on the high pressure line comming off the dryer. It has 2 wires that come off of it. It simply screws out and works off of a barring that is pushed by the freon in the system. if its bad or the pressure is low the switch won't work. Usually A/C systems are not hard to work on but they do need special tools, ie a vacume pumb, o rings, special oil, let me know if I can give you any more info
SOURCE: 2005 hyundai tucson v6 passenger
Possibly.... the only way I know to diagnosis this issue is with an amp meter in the circuit that heats the seats. Compare LH & RH seat heating current draw. If you find the pass seat is NOT drawing the same amount of current, further troublshooting is required. There are TWO heating elements installed in the seats -- seat bottom & seat back, and they are connected in 'SERIES'... so if either element goes/is 'OPEN', then it's component replacement time. There is a thermostat in the heating elements -- it regulates the seat temperature. One must isolate the two elements & check each one individually (seat bottom - checking resistance... and seat back - checking resistance). whichever one (or possibly both) are 'OPEN'. If you find resistance is normal (3 to 5 ohms), then the problem/cause may be in the switch (or its contacts). Using a test light (12 volt bulb), check for power (battery voltage) at the heating element connector to ground (chassis). If the bulb lights up, you know you have power at the switch and is sending it to the heating elements.
SOURCE: 2005 Hyundai Tucson. I live in a cold climate -25F
You should not worry about bad gas,water etc
Also gas lines have not frozen,so to speak ,since I
was a child in 1950 and cars used a carburator
Your better off staying way from ethanol fuels,and
ten oz in a fuel tank of anything, is a waste of money,
especially injector cleaner,which by the way is not
recommended by any MFG I know of,because of injector
design and coatings.
Not a head scratcher at all
If you ,meaning a professional knowledgeable about
your vehicle systems,were to check out your vehicle
in sept when it was warm,you would be ready for -25F
I suspect all the basics like 5w-20 oil,spark plugs newer than 60,000 miles,
and a long list of other preventative maintenance items would help
Now I'am not implying anything here other than if you work on your
own vehicles you missed something,if you depend on a paid
mechanic at a local shop,you have to tell them what to do.
That leave you in a tough spot on a high tech vehicle
Your not familiar with it and the pro is struggling to keep up
So you most likely as you said don't have temperature issues as much
electrical OBD2 concerns
I would start with the fuel pressure system, you have to appreciate
the fact I won't guess, because testing is the only fix
SOURCE: I have a 2005 tucson.
The reason your heater is blowing cold air may be that your heater filter is blocked, it is located behind glove compartment.
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