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2001 dodge durango no heat from rear climate control

Not sure where I access the rear heater core and plastic door in the vent that seems to have a history of failure.

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Posted on Jan 02, 2017

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SOURCE: Location of heater core

It is under the dash in the middle of everything. You have to fully tear down the dash. allow at least 8 hours and also get a camera and take a lot of pictures. You can put parts in zip-lock bags and lable as you go.

You can get great info on dodgeforum.com

Posted on Sep 19, 2008

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SOURCE: 1999 dodge durango heater core

It's a big job. Drain the coolant down, recover the freon in the ac system and disconnect the lines and heater hoses. Lower the steering column, remove the instrument panel assembly, remove the heater housing. Split the case halves on the housing and there you are. Usually around 500 to 700 dollars at a dealership.

Posted on May 29, 2009

motor1258
  • 6674 Answers

SOURCE: My heater in my 99 dodge durango does not heat

This is provided you have confirmed that a plugged or partially plugged heater core is your problem, and not a vacuum problem, or heater control valve or similar is not defective. Yes it certainly sounds like some blockage/restriction there, but may I advise you to try this first, as it may save a lot of money, time, & aggravation. Go to Rona, Home depot, or similar hardware store & buy a drill pump. (about $25.00 in Canada) but there are cheaper ones around.
Remove your heater hoses at the firewall (when engine cold) and you will see the 2 copper ends of your heater core to attach drill pump to. Put one end of the pump (pressure side) on one fitting, of the core and the other hose from pump suction side, into a jug of CLR (calcium ,lime, rust, remover.) The other connection/fitting from your heater core will need a piece of hose going from it, into a pail, or another jug, same size as CLR to retrieve liquid when it flows through. Circulate the CLR through the core a few times, then let it sit in the core for a while. Then reverse the hoses at the core & circulate it through the other way a few times & let it sit in there as well. I let mine fill the core, then I plugged line where CLR would flow out of heater core & then let it sit all night in there to dissolve as much calcium etc., inside as it could. Then next day, I ran pump in both directions/fittings, again to flush everything out. Then I re-attached my heater hoses. My heat increased at least 75% at idle, because it had removed a lot of the restriction in the core.
Make sure you take all safety precautions, such as eye protection in case CLR splashes in your eyes, and make sure engine is cool, pressure is relieved via removal of rad cap & to avoid burn from hot coolant when hoses removed. My guess is that your into $20-$25 tops, and a whole lot less work. Let me know how it goes.

Posted on Oct 05, 2009

  • 491 Answers

SOURCE: 2001 Dodge Durango heater control switch won't

CHECK FUSE BOX BLOWN FUSE TO POWER OF VENTS.

Posted on Oct 13, 2009

  • 120 Answers

SOURCE: remove heater core-99 dodge durango

that is quite a labour intensive job..i know when i worked for a dodge dealership we charge out 10 hours and it would take every bit of that...please keep in mind, that's with air tools too and everythin available to you...maybe this one is best left with the experts...

Posted on Nov 14, 2009

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Check hoses to heater core to make sure BOTH are getting hot. If yes, bad blend air door or actuator likely. If no, back flush heater core or replace.

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the heater core is removable from the climate control unit. The climate contriol unit has to be removed to replace it. The A/C system must be evacuated and lines removed as well as the dash, to access the climate control unit. The steam is coming from a leaking heater core.

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Usually this is a problem with the blend doors under the dash. You either have a vac leak, a dead motor, or a faulty door.
The control opens and closes the doors to direct air thru the heater core and evaporator core along with directing air thru the vents.
When a problem occurs, the default position is the defrost vents to make sure the windshield remains clear.
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Passenger side heat doesn't work in my 2007 Dodge Grand Caravan. There is no heat, only cold air, coming from the dash, floor, & defrost vents. There are dual temp controls for the driver &...


I really can't be sure off hand, but what you wrote looks like the control valves are sticking(these flaps allow air to go different directions at the vents). its located at the heater core(towards the left side of the heater core) under the plastic just under the dash. you can manually move them, encase they are stuck, they do stick sometimes. while checking the vent doors, make sure your vacuum lines are connected. also check to make sure your vent hoses are tight. I hope this helps

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The rear vent system has a separate heater core/blower system. heater core could be plugged up or the coolant lines going to rear heater core are plugged. could also be low coolant/faulty water pump not producing enough pressure, or air in the cooling system which will need to be bled if so.

Feb 22, 2009 | 2001 Dodge Durango

1 Answer

1999 Dodge durango heating sucks and leaking coolant now


Smelling antifreeze indicates to me you have a crack in the heater core. Most are made of plastic. This shows yours is metal. I guessed on 2WD or 4WD and size of engine.

http://www.autozone.com/cooling-heating-and-climate-control/heater-core/spectra-premium-heater-core/979573_717836_0

Unlikely to be frost plugs unless you ran the system without antifreeze and the block partially froze. When they freeze fully, the plug pops and out and you lose all the coolant when it thaws.

Finally, this is a common problem with the Durango! As my learned colleague says, replace the thermostat as it needs to be fully open to let water flow well to the heater core.

1999 Durango Google Search

Mar 28, 2017 | 2001 Dodge Durango

1 Answer

No heat or a/c from second row vents


I have the same problem with my 2002 Durango. After accessing the rear HVAC unit you will find that there is a rear electronic actuator that operates a plastic door inside the duct system. The door switches the rear system between heat and cold. I had two broken items, the white actuator connector has a tab that broke off and the door inside the duct has broken where this connector fits inside. I am still trying to find the parts on line. I do not know what the part numbers are for these two items. Hope that helps, it seems to be a typical problem with the older durango's.

Jan 20, 2009 | 2002 Dodge Durango

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