If the blower motor is working, then the ceramic piece(blower motor resistor) is not the problem.

 

Wonder if i can access the blend door on my 96 through the glove box... But for the original op... I have a 96 ram and I have flushed and back flushed the system atleast 3 times, changed the t-stat twice, replaced all the hoses and burped the air out. All my hoses feel hot now, except I still do not have heat, so that would mean its my blendd door(kinda sounds like your t-stat may be stuck even though its new..). If you replace your tstat and do what ive done above(hopefully only once!!!) My next guess would be your blend door, or blend door actuator. ...Gotta love these dodges!!! Plenums in the summer, trannys in the fall, blend doors in the winter and cracked dashs in the spring!!

 

Maybe he needs a dickfer?

 

My Blower motor was working and I did all the same things that they did ... Just saying that its what fixed mine... It might be somthing to look at... simple cheap and takes away one more thing that can be wrong..

 

i bought the part last night didn't fix anything............. this sucks

 

I am in the same boat as you and offroadjosh. I have replaced almost every part and tired every gimmic with zero improvemet. The only two remaining parts for me are the blend door and the heatr core.

Logic points to the heater core and not the blend door. If it were the door then you should get the same amount of low heat when you increase the fan speed, not a drop in temp. That sounds like your heater core isn't getting hot enough or not trapping enough heat from the coolant as i flows through the core. But after all, it is a dodge so there is very little logic here.

 

I have replaced everthing but a the water pump and taken the freeze plugs out of the block............

 

So you replaced the heater core?

 

Any pressure being used when flushing? I wouldn't think a little trickle one direction and then the other would accomplish much. If stuff started to calcify or sludge it's not going to wash out without some force.

I read posts about "not using a lot of pressure", but I'm thinking that was more for a completely clogged unit. Never got any heat from using a low pressure flush. I used 90psi from the compressor to blow out all the water each time I filled the core before I was able to get any heat. (Repeated until I saw no gunk dripping out of the discharge hose)

It's not like the core is made out of paper, besides, if you haven't replaced the core and it's your last item on the list of heating issues, and the core ruptures, you didn't have heat any how.

 

+1, I also used CLR on my 98 without any problems. Let it soak for 30 minutes in the core and flush it out both ways real good.