It started over heating while idling and was bubbling water at wher the hose attached to thermostat
When an engine reaches running temperature the coooant is usaully under pressure (up to 8psi). It the piping is split or the clip is not tight then replace the pipe or tighten the clip. It might be possible to push the push the hose on further and then retighten the clip on fresh hose. I have seen duct tape wrapped tightly around a split hose work as a temporary fix. Make sure that the hose after the thermostat is getting hot as this will indicate that the thermostat is opening as it should. If it remains only warm the thermostat could be faulty causing the engine to run too hot and pushing pressures too high and causing the venting of steam.
If its the stat then you will need a 13mm socket and ratchet with extension to remove the bolts that hold the stat housing to the motor. a drain bucket to drain the cooling system below the level of the stat, remove stat and clean surfaces on both the housing and motor. install the new stat and gasket reassemble in reverse order and refill the cooling system and run engine to operating temp and make sure all air is out of system.
SOURCE: heat 2001 dodge durango
a bad heater core will just leak. it could leak alot. do you ever smell antifreeze? check the coolant level. it can get pretty low before it will overheat. the thermostat should be ok but there could be corrosion. when you had the water pump replaced was the cooling system flushed? 2001, its probably due for a flush. what coolant does it take? (green or orange)
SOURCE: 1999 Dodge Durango NO HEAT
Bad NEW thermostat? I had the same problem on my first generation Dakota. The problem for me turned out to be the DODGE thermostat I used to replace the old Dodge part. I went and got a Stant from local auto parts store using the standard temperature spec and quit shivering the next time I drove it. I hope that helps!
SOURCE: THEROMSTAT/ 2002 DODGE DURANGO???
make sure engine is cool then drain coolant by opening the drain plug at bottom of radiator. remove cap from radiator so coolant will continue to drain and when coolant is down enough to pull off upper radiator hose at intake then close drain, then remove two bolts at coolant housing and remove thermostate. clean gasket material from intake and housing and replace with new gasket and thermostate tighten bolts install hose fill rad with coolant water mix 50/50 and run engine with heat on floor until gets hot and you see coolant flowing in rad, install cap
SOURCE: 2002 dodge 1500 Changed radiator, thermostat, and hoses. No heat
Why was radiator replaced?Did it have heat before ? If it was plugged, the heater core may also be plugged. Try flushing it with a water hose in both directions. I dont know why the botton radiator hose would be cold, the radiator should be a uniform temp and the air coming through the radiator should be HOT, when the engine is at operating temp. What condition was the old coolant? if it was rusty, the water pump may have lower flow than normal.
SOURCE: Heat troubles..92 dodge caravan 3.3L..new
If it is fogging your windows, you have a leaking heater core. Dash removal is required to fix it.
Testimonial: "great advice,,but I am not losing antifreeze from my cooling system,"
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