2006 lj, I just replaced heater core. Blower is fine, door actuator working door opens closes, hoses feel hot feed and return...but no hot air..warm at best...any ideas???
Heater issues
- Thread starter James Brewer
- Start date
IF you are sure that the blend door is opening fully; then there may be air trapped in the core that needs to be bled out.
OP
I was thinking that too...but the return goes back to water pump..wouldn't that be causing over heating issues if coolant wasn't circulating..tomorrow ill pull the hoses and use a funnel to manually fill core with coolant.
OP
Ya i manually opened and closed it by removing the actuator and twisting the knob..I can hear it slap each side..
Water can flow thru the engine pushed by the water pump, but the air can remained trapped in the heater core with a minute amount of water flowing thru.
When burping the core; I would suggest you park the Jeep on an incline to promote the removal of air from the core.
Not saying trapped air is your issue, but this type funnel works like a charm.
https://www.amazon.com/gp/product/B01I40ZQWE/?tag=wranglerorg-20
https://www.amazon.com/gp/product/B01I40ZQWE/?tag=wranglerorg-20
OP
Well, that core never put out much heat and failed in 6 months...I recently ordered, received, and installed a custom built core from thebrassworks. Copper core with brass connectors...No plastic, substantial, fit perfectly and blows hot...ready for winter...
