Reb78 Posted November 12, 2020 Report Share Posted November 12, 2020 No heat on passenger side of my 2010 SXT. Checked the actuators they are working. Replaced the heater core, no change. Manually closed the blend door with the actuator removed, still no heat on the passenger side. Looking for suggestions. Quote Link to comment Share on other sites More sharing options...
5rebel9 Posted November 12, 2020 Report Share Posted November 12, 2020 If indeed you have a single zone front heat and not the separated front heat. I would think that manually closing the blend door(or opening it would also change the drivers side heat level, something you did not post of observing. IF your front heat is changeable for pass. side from drivers side, there should be another actuator and door that you've missed for the pass. side. I've also read on another Chy. forum of the rod in the HVAC box to the affected door coming apart so that actuator or manual movement does not function even though those parts move. I'm new to the DJ line but not Dodge/Chry., maybe a bit more "clarification on just what you've got would be helpful as I know some folks say single zone meaning just front heat and not rear heat(a separate system) and others saying dual zone meaning driver and pass. side separately adjustable. Quote Link to comment Share on other sites More sharing options...
Reb78 Posted November 15, 2020 Author Report Share Posted November 15, 2020 The pic below are the only HVAC controls in the vehicle.Are there any other actuators besides the one on the driver side and the one on the passenger side for the mode select? Quote Link to comment Share on other sites More sharing options...
5rebel9 Posted November 15, 2020 Report Share Posted November 15, 2020 Well, definitely different dash layout from our "new to us" '11 model that has seperate driver/pass heat controls thru the audio screen that your's does not seem to have. Don't know if possible you have air entrapped in the heater core, as you didn't mention that this was immediately after hooking all back up from the heater core change. But from all you've posted, that's about the only thing I can think of. When you manually moved the blend door, did temps on drivers side change? Quote Link to comment Share on other sites More sharing options...
Reb78 Posted November 15, 2020 Author Report Share Posted November 15, 2020 That’s the only thing I can think of too. It started when I had a leak in the overflow tank. Replaced it, burped it... no change. Replaced heater core, burped it... little to no change...pulled both actuators, both work and no visible breaks. Closing the door manually still had cooler air on the passenger side. I’m at a loss... maybe have to try burping it again. as I’ve been reading these are notorious for trapped air. Quote Link to comment Share on other sites More sharing options...
Reb78 Posted January 26, 2021 Author Report Share Posted January 26, 2021 ***********UPDATE*************** After many hours of troubleshooting this is what I found: the radiator cap had failed. I could hear a rattling noise that was coming from the passenger side. Couldn't pin point it until I did a pressure check on the cap. Replaced and the car started to heat up inside, but would still drop off when driving. The thermostat also had failed, even the new one that I had replaced failed. After installing a second thermostat the heat was there.... Although not as hot as it should be on the passenger side, but not blowing cold air anymore either. May look at doing the heater core again, but at this time in the middle of winter, I think I can live with the heat I now have. 2late4u 1 Quote Link to comment Share on other sites More sharing options...
5rebel9 Posted January 26, 2021 Report Share Posted January 26, 2021 Glad to hear you got it figured out. Yup those small pesky items in the cooling system can cause big headaches. BTW : I take it your DJ has the 3.5 motor?? Quote Link to comment Share on other sites More sharing options...
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