Hot air only on 1998 Lincoln Navigator

Recently I discovered that I only get hot air from the vents...adjusting the temp control has no effect.

Can get air to go to Defrost, panel, floor...etc...however it is only HOT.

Asked by for the 1998 Lincoln Navigator
2 answers
Sounds like a temperature blend problem. There is a door in the dash that modulates air from hot to cold and every combination in between. This door is likely not turning as commanded, due to a failed motor. If this is the case, the dash has to be removed to access the motor.

Good luck!
The most likely cause is a inoperative temperature blend door actuator or a broken temperature blend door. This is very common.
We have done this repair many times and would be happy to diagnose this for no charge to gain your trust. Also we are factory trained.

RC Auto Specialists. Ford repair experts. Tulsa.