gibbypa
Junior Member
- Joined
- Dec 19, 2013
- Posts
- 1
- Reaction score
- 3
- Ram Year
- 2017
- Engine
- Cummins 6.7
Hey everyone.
I have a 2017 Ram 2500 BigHorn with the 6.7 Cummins.
When it started getting colder here in central Ohio, I found I had very little heat in the truck. Luke warm at best.
I bought the truck new in 2017 and have never changed the coolant. Currently have just over 87500 miles.
First thing I thought was, as does everyone, thermostat. So I drained the system, flushed it and ran a cleaner as well. Replaced the thermostat and replaced the coolant with the proper OAT coolant. No change.
I then read there could be bubbles in the system after a flush that could impede the flow, so I squeezed on the upper radiator hose and did get quite a few bubbles that came up, but still no change.
Next, I learned the cold air door and actuator could not be closing and opening properly. I checked this and was working just fine. This is found right behind the glove compartment.
Lastly, I learned (from reading and watching videos) it could be a plugged heater core. The more I read, the more I learned this is not too common on a vehicle of this year and miles. Usually occurs much later in its life and miles.
Anyway, I flushed and back flushed the heater core and this was it. The water coming out of the core was not dirty and didn't see any real obvious reason for this, but after I ensured there was no air and re-attached everything, plenty of heat in the truck now.
So, for anyone with this problem, don't forget about the heater core. It wasn't on the top of my list, but something to keep in mind.
Todd
I have a 2017 Ram 2500 BigHorn with the 6.7 Cummins.
When it started getting colder here in central Ohio, I found I had very little heat in the truck. Luke warm at best.
I bought the truck new in 2017 and have never changed the coolant. Currently have just over 87500 miles.
First thing I thought was, as does everyone, thermostat. So I drained the system, flushed it and ran a cleaner as well. Replaced the thermostat and replaced the coolant with the proper OAT coolant. No change.
I then read there could be bubbles in the system after a flush that could impede the flow, so I squeezed on the upper radiator hose and did get quite a few bubbles that came up, but still no change.
Next, I learned the cold air door and actuator could not be closing and opening properly. I checked this and was working just fine. This is found right behind the glove compartment.
Lastly, I learned (from reading and watching videos) it could be a plugged heater core. The more I read, the more I learned this is not too common on a vehicle of this year and miles. Usually occurs much later in its life and miles.
Anyway, I flushed and back flushed the heater core and this was it. The water coming out of the core was not dirty and didn't see any real obvious reason for this, but after I ensured there was no air and re-attached everything, plenty of heat in the truck now.
So, for anyone with this problem, don't forget about the heater core. It wasn't on the top of my list, but something to keep in mind.
Todd
