Hey Guys,

Well the weather is starting to get cold out and I figured it was time to get the heat working in my 2003 Dodge ram 1500.

Heres some details:
all of my vents are working properly with airflow coming out, upper vent for windshield, dash venting, and lower foot vents. I get cool air out of all them when it is demanded. When I switch the dash dial to full heat I am only getting heat on the passenger side. the driver side venting still continues to deliver cool air. I have all of the lower dash panels off and have checked all three climate zone actuators. They are all funtioning properly. I assume the issue is in the blend door area? Have any of you guys had this issue before? If so what was the corrective measure? Any insight on this would be greatly appreciated.

Thanks again

 

going thru this issue myself. i was only getting heat on passenger side. heater core had a leak on the side that air blows thru for drivers side. replaced heater core and cleaned up blend doors and heat is blowing awesome but now i have fluid leaking out my overflow tube, workin on this prb now.

 

its your blend door. very common problem in the 03 especially.

 

ok so do i have to access this blend door from the inside of the truck? Currently I have all of the lower dash panel apart so i can see the HVAC system under the dash. Where abouts is the blend door located?
THanks again for the input.

 

 

Hey so I checked all the actuators out and the blend door is moving. This is throwing me for a loop

 

Thiers a lot of open space under the hood of of a hemi, my 06 used to heat up to a hellish temp, now i have swapped out the thermostatt with a "non mopar unit" and added cardboard to the front of the truck, heat is back.
Been averging close to -30c + wind chill.