2004 Hyundai Santa Fe no heat

Tiny
TRALO143
  • 2004 HYUNDAI SANTA FE
  • 3.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES

No heat, just blowing cold air. Changed the thermostat and replaced the radiator. Still no heat.

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Saturday, October 31st, 2015 AT 1:03 PM

11 Replies

Tiny
2CARPROS KEN
  • ADMIN
  • 8,708 POSTS

Hey TRALO143,

I'm suspecting a possible defective heater core. Check the inlet hose for the heater core and it should be hot once the vehicle is up to operating temperature. Then check the outlet hose for the heater core and it should be equally as hot. If the inlet is hot and the outlet is anywhere from cold to barely warm, you have a bad heater core.

If that checks out it could be the blend door actuator not working. It looks like it is under the dash on the passengers side. You will need to remove the glove box to change it out.

Here are some guides that will help you get the problem fixed.

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

and

https://www.2carpros.com/articles/replace-blend-door-motor

Please run some tests and get back to us so we can continue helping you.

Best, Ken

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Tuesday, January 3rd, 2017 AT 10:07 AM
Tiny
JEFF BRODSKY
  • 2004 HYUNDAI SANTA FE

Heater problem
2004 Hyundai Santa Fe 6 cyl Two Wheel Drive Automatic 115000 miles

Although the temp gauge shows the water is heating, the heater is now blowing only cold air. What should I check?

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Tuesday, January 3rd, 2017 AT 10:07 AM (Merged)
Tiny
IMPALASS
  • EXPERT
  • 3,143 POSTS

Hello -

To better assist you is your model just a Santa Fe or a GLS or LX. Also please tell me your engine size in liter.

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Tuesday, January 3rd, 2017 AT 10:07 AM (Merged)
Tiny
  • 2004 HYUNDAI SANTA FE
  • 132,000 MILES

WHEN I TURN MY AIR CONTROL SWITCH NOTHING HAPPENS. TRIED HITTING RESISTOR AND NOTHING STILL HAPPENED.I DONT KNOW IF THE PROBLEM IS IN THE RESISTER OR IN THE DASHBOARD BEHIND THE KNOB. THANK-YOU NO HEAT IN WINTER IS NO PICINIC

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Tuesday, January 3rd, 2017 AT 10:07 AM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
  • 25,509 POSTS

Try tapping on the blower motor. Check for voltage to it as well. It may be a failed motor

Roy

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Tuesday, January 3rd, 2017 AT 10:07 AM (Merged)
Tiny
  • 2004 HYUNDAI SANTA FE
  • 80,000 MILES

My 2004 hyundai santa fe heater not working

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Tuesday, January 3rd, 2017 AT 10:07 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,275 POSTS

Is the fan working?

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Tuesday, January 3rd, 2017 AT 10:07 AM (Merged)
Tiny
  • 2002 HYUNDAI SANTA FE
  • 139,876 MILES

Heater blowing warm air, not hot

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Tuesday, January 3rd, 2017 AT 10:08 AM (Merged)
Tiny
ASEMASTER6371
  • EXPERT
  • 25,509 POSTS

Thermostat, coolant level, heater core blocked or blend door issue

Roy

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Tuesday, January 3rd, 2017 AT 10:08 AM (Merged)
Tiny
FRSAJ
  • 2004 HYUNDAI SANTA FE

Heater problem
2004 Hyundai Santa Fe 6 cyl Four Wheel Drive Automatic 17800 miles

Cold air coming out no heat and the fan is loud

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Tuesday, January 3rd, 2017 AT 10:08 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,275 POSTS

Is the engine running at a normal opperating temp? IF it is, with the engine running, hot, and the heater on, feel both heater core hoses. THey should both be hot. If one is hot and one cold, chances are the heater core is plugged. If both are hot, then the blend door needs to be cheked. It determines if you get heat or AC.

Let me know what you find or if you have other questions.

Joe

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Tuesday, January 3rd, 2017 AT 10:08 AM (Merged)

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