Question about 2001 Hyundai Elantra

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I own a 1999 Hyundai Elantra 4 door the Heater will not work

I would like to know what I need to get to fix the heater so it will heat.I get nothing. I hope you can help

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  • collinsa Dec 04, 2008

    the heater has been acting up going on and off all we did was hit the dash move the controls and it would go back on but you could only get the blower go up to number 2 or it would not work. Now it dont work at all so it is very cold in the car. We have not done anything to fix since it just stopped today and are in hope that someone would be able to tell us what to replace or fix. I will have my husband look at the hoses but hope someone might know what part we need or if the hoses are not the problem what it might be thanks for reading.

  • yadayada
    yadayada May 11, 2010

    What have YOU done to try and fix it?



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Black rubber vacuum hoses are often a cause for heater failure, especially in older cars. Anytime the hood is up and engine is cool start inspecting and following these hoses as far as possible. They should be firm, springy upon pressing and fairly smooth. If soft,crumbly,powdery,oily, stiff/inflexible etc. they should be replaced. The ends should fit very tight over their fittings. Vacuum hose is not expensive so just replace any which are suspect. You may get lucky and find a leaker. If not you have eliminated a future leak. Be sure to mention the vac. hoses have been replaced if you need to write back and ask more questions.

Posted on Dec 04, 2008

  • olderstudent Dec 04, 2008

    It now sounds like it could be a loose electrical connection since it was intermittent and hitting/operating caused it to work some. First check all fuses to eliminate them as possible problem. The fan blower control switch may be the problem but may also be very difficult to access, depending on vehicle. Don't pound the dash but somehow try to wiggle the wires which go to the switch. If blower activates any then it probably needs replacing or proper reconnection. All the time be looking for clips, screws, fittings that may release the control panel. These can be hard to see/find. Search web for repair manual. Try AutoZone.



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cba91a1.jpg As you can see, there are four (4) screws in the environment control module. Reassembly is in reverse order.

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