Question about 1999 Dodge Durango

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  • alberto anicolas Jan 02, 2014

    Hi rich cummings, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box?

  • rich cummings Jan 02, 2014

    lo heat in my 99 durango. replaced everything but still lo heat. it was suggested to check blend door but i don't know how to access it to see if cable is connected.the cable is connected at temp. control located at cluster in dash.

  • rich cummings Jan 03, 2014


  • rich cummings Jan 03, 2014

    the temp cable is connected at the dash mounted temp contrl cluster but i can't tell if the blend door is operating near the heater core

  • alberto anicolas Jan 04, 2014

    if the " blend door " is the flap that lets air flow/heat through then see where the control cable attached to it (at firewall) has free movement fully open&fully closed by disconnecting where it moves to see if there's obstruction from the cable moving it OR flap is obstructed from its complete positions as it should be. Hope this helps.



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Blend door is inside the heat/ac box that contains the heater core that you changed. It is vacuum operated, so check all of your vacuum lines. There is a vacuum line that goes thru the firewall, right above or below the 2 heater hoses.

Posted on Oct 02, 2014


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Posted on Jan 02, 2017

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SOURCE: No heat from the heater

check this site out !!
your heater control valve might be faulty also. have a good day !!

Posted on Dec 17, 2010

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I replaced the blend door I guess it needs to be calibrated

Posted on Nov 16, 2008

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