What else could cause heater to not work?

Asked by Nov 16, 2014 at 08:16 PM about the 2004 Lincoln Navigator Luxury 4WD

Question type: Maintenance & Repair

Heater blows cold air, I replace the thermostat, blend door actuator, and flushed coolant. What else would cause heater to blow cold air?

2 Answers

65,725

The blend door not flipping over to heat,remove the actuator and rotate by hand,it may just be stuck.

2 of 2 people found this helpful.
65,725

You can use a quarter inch rachet to move the door,where the square prong go,s in to box.

1 of 1 people found this helpful.

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