Ok, here is whats going on. I have a 03 Dodge ram 1500 single cab 4.7L, I am only getting heat out of the right side of the vents, the drivers side is luke warm again. I had this problem last winter so this summer I yanked the dashed out and found that the recirculation door was busted and noticed the heater core had sighns of a small leak so I replaced both. Checked all the actuators and doors, then put it back together. I turned the heat on and it was blasting with hot air all the way around so I was stoked it was fixed...

Well, today is the first cooler morning ( 47 degrees ) and I turned the heat on expecting that all was good still, NOPE!! Same thng again!! I get great heat on the passengers side and luke warm air on the drivers side again!! To be honest, now I am very angry with this. To the point it has ruined my day!! I spent three solid days doing all the work I did!

I dont know why this is going on! While on the road this morning and realized that it was screwing up again, I watched the thermostat gauge closely and it seemed like it had a hard time getting up to normal running temp. It finally got there for a bit but even after a 20 minute drive, when I pulled in the drive way, the temp went down half way between Cold and normal. It usually stays at the normal running temp... now it is acting all screwy with cooler weather...

I just dont understand why the temp was acting funny and still this doesnt explain why I am only getting heat out of the right side only.

Lemme note to everyone, the enitire cooling and heating system has been replaced... Radiator, water pump, thermostat, fan clutch, heater core, hoses...

 

My truck is doing the same thing. I guess I'll be tearing evrything out this weekend.

 

try replacing your heater controls mine did the same thing then would only blow thru the vents replaced the controls 50.00 at local junk yard and now every thing works fine also flush the heater core just go under the hood unhook the hoses and spray a garden hose both ways hope this helps

 

Sookie, get ready for som fun. Lemme save u some time... If your gonna pull your dash out, drop your steering cloumn and remove the basic panels off the front, sides and top front dash peice. Remove the screws along the front by the window and I beleive there are 3 bolts on the right and left side of the dash and a couple behind the cup holders. You can pull the enitre dash out that way. You do NOT have to take every last peice of the dash to yank it, it will save u so much time!! Keep in mind to check all your blend doors, I found out that if just one door is broke and the actuator running has no stopping point, it messes up all the actuators. On mine, I found that the recirculation door ( top right all the way to the right, Box sits on top of the blend door/heater core box ) was broke and was causing all the door to work wrong. Also, be sure to disconnect the two actuators that work together in the middle ( I didnt notice it and went to spit the box after taking all the screw out and busted the little plastic arm, had to drive 2 hours to a dealer that carried the part LOL ). If your have any question when doing it, let me know...

theice~~ I will try that as well, I mean there literally isnt enything else to replace, it may be the heating controls... thanks for the advice

 

Yuck. Thanks. Lol