A/C blend door questions.

erald01 · 05-08-2009, 05:25 PM

A few questions about the blend door: Is the door inside the evaporator or outside? How easy is it to be replaced or fixed? Does it run off a motor or vacumm lines? Thanx in Advance guys

**BrooklynBay** · 05-08-2009, 06:33 PM

Welcome to this forum! I've moved your thread to the A/C, and heater section. The blend door diverts either cold or hot air between the evaporator, and the heater core.

*Spdrcer34* · 05-12-2009, 01:47 PM

The Door is in the Plenum. It divides the box into to seperate inlet air paths. Coming from either Cold (A/C) air side of the box, or from the Hot Air (Heater) side.

Depending on how you go about doing it, it can be a 4 hour job, or a 5 min. job. Search for all the methods that people have done to 'repair' this problem.

It is controlled by an electronic 'motor'. Ford calls it a 'Servo'. No Vacuum is used in the control of the Blend Door.

Ryan

05-08-2009, 05:25 PM	#1
erald01 Wannabe Elite Explorer canton, mi 1998 Explorer 5.0 Join Date: May 2009 Posts: 23 Vehicle Specs (Original Poster)	A/C blend door questions. A few questions about the blend door: Is the door inside the evaporator or outside? How easy is it to be replaced or fixed? Does it run off a motor or vacumm lines? Thanx in Advance guys

05-08-2009, 06:33 PM	#2
BrooklynBay Aerostar Forum Moderator Brooklyn, NY 88 89 93 95 96 Aerostars Join Date: Nov 2005 Posts: 45,807 Vehicle Specs	Welcome to this forum! I've moved your thread to the A/C, and heater section. The blend door diverts either cold or hot air between the evaporator, and the heater core. __________________ My list of useful threads. My photo gallery. My product reviews. My list of items for sale. Aerostar owners thread. Aerostar parts work in Explorers, Rangers, and Bronco II thread. History of the Aerostar thread. Aerostar Forum. New Members Forum. Ford/Lincoln/Mercury Forum.

05-12-2009, 01:47 PM	#3
Spdrcer34 Speed Bremerton, WA 1992 Explorer XL Join Date: Mar 2002 Posts: 3,884 Vehicle Specs	The Door is in the Plenum. It divides the box into to seperate inlet air paths. Coming from either Cold (A/C) air side of the box, or from the Hot Air (Heater) side. Depending on how you go about doing it, it can be a 4 hour job, or a 5 min. job. Search for all the methods that people have done to 'repair' this problem. It is controlled by an electronic 'motor'. Ford calls it a 'Servo'. No Vacuum is used in the control of the Blend Door. Ryan __________________ 1992 Ford Explorer XL - with a few bolt ons...