1991 Dodge Ram "flushing heater core" Questions

...thermastat, flush the radiator, etc. If I unplug the air conditioner will that help? It only blows out luck warm air right now. you might have a blocked heater core,the core looks like a mini ...

...heater core is not blocked help Under the dash on the passenger's side, right next to the fan (to the left of it) you'll see a plug with 4 wires (green, blue brown, and black with a pinkish tracer) ...

...dose not work changed termustat heater gets hot air comes out louk warm but not hot dese temper contrlor have a morter that controler the heat flush the heater core out with a garden hose and try ...

heater core. This helped for 1 day then it started blowing cold air again. squeeze the hoses to get any air bubbles out and refill coolant as necesary. are you sure you put thermostat in the right way

...heater core is probably partialy plugged try disconecting both hoses .place a short peice on the connections pour in some c.l.r. and let stand for a couple of minutes flush with water botom to top ...

...through heater core. Try flushing it. I hope that will help. Good Luck! Get radiator checked first, but also check fan clutch, if it stays engaged all the time it will keep your coolant temp

heater core with a 4 to 1 mixture of water and muratic acid. Put it in there and blow it out both ways 3 or 4 times. Let the acid mix set for about 10 minutes before blowing it out with air. This is a

...heater core. To do this turn your truck on and turn on the heater full blast,( not just the fan but your heat control valve ). Next, after 15 or 20 minutes, by that time the engine should be warm put ...

...HEATER CORE ALSO, HEAT WILL GET WARMER WHEN RPM GO UP..... ANY MORE SUGGESTIONS Did you burp the air out of the system after changing those parts? It sounds like the thermostat isn't opening which is ...

...heater core is leaking I had a work van with excess moisture problem, had to put it in the garage a couple days with dehumidifier, after that I separated a large bag of charcoal into 4 smaller open ...