Vehicle was overheating, heater core was leaking, heater wasn't working...I R&R'd the heater core, thermostat, and a leaking heater hose...the thing is everythings's the same except the heater core no longer leaks, but there's still no heat and the engine gets hot as soon as the car warms up. I havn't changed the water pump yet, but, The upper radiator hose gets hot so I assume that water/coolant is moving inside there...could you guys please help, this has me stumped, I've tried every test I know.
Those vehicles have a bleeder valve at the highest point usually by the intake upper radiator hose. Make sure radiator is full heat is on high and just continue to bleed the air out.
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Did you check your radiator to see if it needs to be replaced?
If it is the original my be clogged.
the no heat did you check the flapper door and dash control to see if they are working?
SOURCE: 1998 Dodge Durango no heat when using heater.
BLEND DOOR STUCK OR BROKEN. NEEDS TO REMOVE DASH AND HEATER/EVAP CORE BOS TO REPAIR REPLACE.
SOURCE: Prizm overheats, heater core leaks, no heat
You can bypass the core or fix it that's up to you but I would change or remove the thermostat first. If it still overheats then start looking at the water pump and radiator. Hope this helps. Good luck.
SOURCE: Dodge 2002 Grand Caravan V6 3.3 engine overheating/no cabin heat.
Replace the bad radiator hose first. Second- get you special formulated anti-freeze dye from the auto store and pour it into the radiator. Third- make sure you got all the air pockets out of your system, cause the coolant system won't work with air pockets in it. Fourth- Check for leaks by looking for the colored dye. If it's not the radiator hose, then could possibly be a pin hole in your radiator. Would suggest replacing all the radiator hoses at the same time while you got the coolant system disconnected, cause you don't want to have to come back and replace another hose in a few months.
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SOURCE: heater not heating hot enough. heater core not
Good place to start is a cooling system flush and thermostat replaced.
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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