Dodge avenger no heat trouble

[Donald]

Hi everybody this is my first post, on July 29 i sold my old ford & picked up a 2012 Dodge Avenger 2.4 4 cyl. with 45865 miles on it .OK so far i really like this car the problem i am having right now is that i am not getting any heat on passenger side vents just a little bit of cold air. a have been to my local Dodge
garage for an hvac diagnostic and the service tech said everything checked out.he even got on the phone to the engineers who built this car and they are totaly stumped all they could come up with is that there is a mechanical at fault within the hvac system and that the dash board will have be removed so the
techs can see what is going on. i am fine with that except for the fact that this will cost me $700.00 for labor not to mention what the techs find out.
has anybody got any ideas, are there any follow avenger owners out there who can help with input .all i am looking for here is little solace at this point.
PLEASE do not judge me for what i have done just some good advice would be nice. PS i am a Dodge fan at hart Mopar power.

Topic

[Wyr Twister]

See if you can find any books on the car .

I used to buy a Chilton or Haynes ( sometimes both ) book on a car I owned & was going to have to maintain .

Seems like paper books are going out of fashion ?

See if the passenger side has seperate blend door s and if the accumulators are vacuum or electric ? Do you have seperate controls for the driver side and the passenger side ?

God bless
Wyr

[college man]

If the car has dual climate control one of the actuators is either not working
or the door is stuck.

[EricTheCarGuy]

Step one, bleed the air from the cooling system.

BTW forget about bleeder valves, they just make filling the system easier.

I’ve also written extensively about dealing with HVAC issues here. There may be additional information that can help.

http://www.ericthecarguy.com/faq/solving-automotive-hvac-problems

Please keep us updated on what you find.

[Donald]

HI Wry i have several options for help to my Dodge Avenger no heat issue .I found a Haynes manual at Amazon online ,used for less than $$ 20.00
Haynes also has a very cool web site were i can go online & look up repair info as well. Chilton also offers repair manuals for Dodge Avengers as well online help. Chilton & Haynes are not the same publishing company’s as i thought so THANK YOU .

[Donald]

Hey Collage Man thanks for responding to my post ,My Dodge Avenger does not the dual climate control for the driver side & passenger side only one control for both. i have also looked under the dashboard while the car was running & key on engine off to see if all the vents & doors are working properly and everything is good . THANKS. i think or hope that there is something simple that is in the junction control box that is either broke,stuck,or lose,

[Donald]

HI Eric The Car Guy Tank you very much for your post reply. OK so you mentioned about bleeding air out of the cooling system.I do not think that is
necessary and please understand why from my point of view. on this particular 2012 Dodge Avenger the heater works for all the vents on the driver side and all cold air on right side vents. defrost Left front side ,middle,floor as well the blend vents are good for air & heat but on the right vents BRRR
no warm all at all.NOPE, .Eric sir here is something else that is peculiar about this hvac system ,when i turn the heater control knob down off the high setting there is no blend of the heater setting like the dial is on a little red dot & then when i turn to 78 deg or lower all cold air. Please let explain what
is exactly what is wrong works ,heater is nice and hot on the left side only ac & cold on the right Thanks for any & all help.
PS if it is possible MR.Eric The Car Guy would you be willing take look at my Dodge to see if this can be fixed.i live in PA we can work the logistics later .Thanks

[Wyr Twister]

I hope you will ba a little more clear how all the A/C – heater parts work when you get your books . The photos and drawings help me a lot .

You have a heater coil and an A/C evaporator coil . When running heat , the evaporator coil does not do much of anything . The heater coil is the star of the show .

You probably have a vacuum , electric or cable operated valve that can shut coolant flow off , when heat is not needed .

You should have blend doors that select outside air or recirculate inside air . Doors that send air up to defrost , out the vents or down to the floor . And combinations of those positions . Perhaps doors that change the amount of air through the heater coil and the evaporator coil .

All these doors are operated / moved by electric , vacuum or cable . All this is juggled by the knobs , dials or levers inside the climate control center .

God bless
Wyr

PS I looked up this system on Chilton on line & the blend door actuators appear to all be electric . Also , you have plastic air ducts that transport air to the different vents . You might check & see if any of them are loose .

[Justin]

Try flushing your coolant system. I have seen the heater core plug up half full. Literally, and cause your half hot half cold problem. You may get lucky with flushing the system out but may end up replacing the heater core. Bottom half flows to the passenger side top half to the driver side. Usually it’s the bottom half that clogs up first.

Check back and let me know what happens.

Sent from my iPhone using Tapatalk

[zero]

Incoming wall of text>>>>>> PLEASE SCROLL DOWN FOR FIRST THING TO CHECK

Check the cabin air filter, it’s behind the glove box, if you’re having any issues with air volume.

While the glove box is pulled down to access the cabin filter, attempt to locate any of the HVAC actuators. It’s hard to describe what they look like but there’s usually at least 3 on the heater box. You should be able to see something that looks like [THIS](https://www.rockauto.com/catalog/moreinfo.php?pk=4780503&cc=1502168). There should be 2 behind the glove box area(ish) and the final one is way up on the driver side. I’m not sure which one controls which, but that doesn’t matter at this point because…

Once you’ve located them, again probably 3 total, you’re going to cycle the different functions while simply feeling for any sort of movement in the different actuators. A mechanics stethescope may also help at this point since there should only be a very slight vibration form each unit. Through the process of elimination, you can figure out which one does what. One should control the temperature blending. Another should control the recirculate function and the final one should control the mode operation. I hope it goes without saying to only try one of these functions at a time and remember that they don’t instantly move to the next setting.

Now if you find one is NOT working and you can switch the plug with one of the other ones, switching the plugs between 2 actuators should switch the controls of said actuators. So if you switched the recirculate function and the mode function, switching the mode should now activate the recirculate function. Failing that, you can also try physically switching the actuators. It should yield the same results, a dead actuator will be a dead actuator on another circuit.

********START WITH THIS************

Now, that being said, there may be an actuator relearn procedure for your vehicle. I did a quick search and it appear many other Dodge products of the same generation have one, but I was unable to find an Avenger specific relearn. Although they tend to be similar across brands. If you have had any sort of battery related issues at all in the previous months I would strongly recommend doing this first.

RETURN TO TOP^^^^^^^^^^

Now hopefully by this point you have discovered a non working actuator somewhere, maybe it’s even easy to get to. HOWEVER, if they all appear to be working properly and the search for a relearn procedure proved fruitless, you may have to face the very real probability that there is something broken inside of the heater box and the only way to definitively find the problem is to remove said heater box.

If you paid for the HVAC diag, you could always go back and politely ask the dealer to check for a relearn procedure. If there is a failed actuator, there should be a code in the HVAC module.

Ya, that’s a lot.

[Mannie]

i created a log in, to hopefully find the answer here, only to find that no one has the answer. It’s winter and my air blows colder than outside…l did notice that my car isn’t reaching optimal temperature almost ever. I’ll take the thermostat off and test that it isn’t stuck open.

[Wyr Twister]

Temporary put some cardboard in front of the radiator to block off some / most of the air flow .

Wyr

God bless

[Author]

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