Question about 2003 Ford Explorer
I have a 2003 Ford F150. When I press the button on the controller to floor the heat comes out the defrost. I can switch from defrost to vent. When I press the vent & floor button it changes to the defrost.
Item Part Number Description 1 — Air inlet door 2 — Temperature blend door 3 — Headliner airflow 4 — Auxiliary mode door 5 — Floor airflow 6 18476 Heater core 7 19860 Evaporator core 8 19805 Blower motor
The auxiliary A/C and heating system has the following features:
I would say the auxiliary mode door (#4) electric motor is not wokring.
Auxiliary Blend Door Actuator —Air Distribution Removal and Installation
Posted on Mar 01, 2009
SOURCE: Vent control
You have a vacuum leak.Defrost is the default postion(no vacuum).
See if you can locate the small black vacuum line that goes inside the vehicle on the passenger side near the heater core. The trace it back,should see it going to a canister then to the intake manifold.Make sure it is not disconnected or broken somewhere.
Posted on Mar 02, 2009
You did not mention if the system you have is electronic(digital control) or manual(control knobs) but what your problem is, is a vacuum leak. Defrost and heat or the default postions for no vacuum. If it works ok until you press max air Then you will need to check the outside blend door vacuum motor. It will be the white vacuum line going from the control head.
Posted on Jun 01, 2009
Tips for a great answer:
Sep 28, 2016 | AC Cars & Trucks
Apr 13, 2016 | Ford Cars & Trucks
Oct 19, 2011 | 1997 Ford F150 Regular Cab
Jun 27, 2010 | 2004 Ford F150
Nov 16, 2009 | 2000 Ford F150 Flareside SuperCab
Jun 01, 2009 | 2004 Ford F150
May 26, 2009 | 2004 Ford Expedition
Mar 02, 2009 | 2003 Ford Windstar
Feb 15, 2009 | 1999 Ford F150 Regular Cab
Jan 29, 2009 | 2001 Ford F250 Super Duty Super Cab
125 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: