no heat in the front of the cabin the back vents are hot. Blend door issue?

40

Asked by Nov 19, 2014 at 09:45 AM about the 1999 Ford Expedition

Question type: Maintenance & Repair

The rear vents in the cabin blow hot air but the front vents are cool.  I assume they all
work off of the same heater core?  if thats the case then is my next step this dreaded
blend door that seems to be a common problem?  I've pretty much narrowed it down to
that but was just looking for any other ideas or tips.

9 Answers

8,655

does it heat up eventually as you drive

2 of 2 people found this helpful.
40

it does get a little warm but never hot enough to keep the feet warm or thaw the windshield.

4 of 4 people found this helpful.
8,655

have yyou checked the antifreeze

1 of 1 people found this helpful.
40

yep. that and thermostat was my first step. i honestly didn't think that was the problem because of being hot in the back but not in front but i started there anyway.

8,655

does your control knob in the front work on all its settings

1 of 1 people found this helpful.
40

yes

5,965

Check the vacuum lines and linkage to be sure trap doors are working correctly.

This sounds like my problem as well I have a 1998 expedition. Where are the vacuum lines and linkage to be sure a trap door is working correctly?

i have the same problem with my 99 expedition i also replce door blend actuator and still hor air in the back and cold in front. Any other tips?

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