Heater problems

ABAGALE

MEMBER
2000 FORD EXPEDITION
5.4L
V8
2WD
AUTOMATIC
194,770 MILES

I want to know where the coolant system air bleed is at so I can bleed the air out of the system to try and fix my heater issues? Both my heater hoses are hot, and all my fluids are full. So I believe my thermostat is stuck open causing my heater to blow cold. I am also checking the fuses just in case. If I could find the bleed for the coolant system I would like to do this before the thermostat so I do not do more work than I have to. I do not have any of the tools required to check the thermostat, so I want to make sure it is not something simple before I go replacing it. Also, if it does need replaced I want to bleed the air to make sure I have done the job properly. Any other ideas on what it could be? Please let me know! Thanks for your help!

1 Reply

HMAC300

MECHANIC
48,601 POSTS

If your hoses are hot then there is absolutely nothing wrong with thermostat. Try pulling fuse five in central junction box inside cab for sixty seconds with key on then reinstall. It is more than likely the blend door actuator has to be reset or is bad. This is assuming you have manual air where you do not set the temperature. If you set temperature then it has to be scanned for codes to see what is wrong with it. A mechanic has to do that.