Step by step instructions to flush my dodges heater core would he helpful, I have zero heat and the 20 mile Trips in -20 isn't fun..

 

Lots of threads already discuss this.

https://dodgeforum.com/forum/search....archid=4961034

 

lmgtfu:

 

hell....i wish my heater core was just clogged. that **** was leaking all up in my cabin. i had to by pass the core all together. consider yourself lucky. i have to tear my entire dash apart

 

This is the wrong time of year to be without heat......

 

I disconnected the hoses, then flushed it out with the garden hose. Then took my air gun and blew some air thru it, and not at 120psi! Just wrapped a rag around the blowgun and slowly applied some air. Then took some CLR and poured that in the heater core and let it soak for 10-15 minutes. Then put an empty gallon milk jug on the inlet side, used the blow gun to flush that out. Repeated with fresh water, then the CLR again. Did that about 4 times. Finally rinsed it out good with the fresh water. Once that was done, poured Anitfreeze down the hoses to "pre fill" the heater core. Buttoned everything back up, topped of the antifreeze. Start it up with the radiator cap off and let it warm up while keeping an eye on the level. Put the cap back on..make sure your overflow bottle is at the full mark. Shut it off and let it cool. You may need to 'burp' it again. Helps to park it with the radiator fill as the highest point.

 

Pretty much followed the same logic as JTB, except I used 90psi and let it fly, several times. FYI this causes running issues (for a while) cause you soak the **** out of everything. AND I used Apple Cider instead of CLR.

Last year during December in the single digits with a grill guard I barely got above luke warm... that was with a CLR treatment.

This year (when it starts) I get very warm air when the temps are in the negatives...with the ACV treatment.

 

Performed a flush with vinegar and the garden hose method, then blew It out. I got a little more heat but determined my thermostat is shot. Semi recently shattered my rear window so im saving up for one and then a thermostat is on the way.. I wish I could keep this thing in one piece for longer than a month someone or something always breaks this stupid thing..