00 excursion ac problem - Ford Powerstroke Diesel Forum
Please Visit our Site Sponsors
99-03 Ford Excursion Forum This forum is for topics relating to the Ford Excursion only.

Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 07-25-2012, 08:11 PM
Powerstroke.org Rookie

Join Date: Jul 2012
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
00 excursion ac problem

I have a 2000 excursion limited with the 7.3 the problem is the front ac only blows cool air I would guess about 70 degrees but the rear air will freeze you out of the back seats Any ideals on what to do or try thought about putting valves on heater core lines to be able to shut the core down like my peterbilt has would this help any or is it the mix door under dash not fully closing
Thank you for your time.
Reply With Quote Quick reply to this message
Sponsored Links
Old 07-26-2012, 08:05 PM

Join Date: Jul 2010
Posts: 89
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Sounds like the mix door, a known problem on fords. It's a rather stupid design if you ask me. If that is your case, a heater core bypass would allow you to have cold blowing AC. However, if your mixing door isn't closed all the way, you still won't be able to achieve the system's maximum cooling output. It is probably cheaper and easier than fixing the mixing door, but I would still recommend fixing it.

Based on my understanding of how this system works, if your mixing door is stuck, in the winter you won't get as much heat either. You are obviously getting air going across the evaporator coil. Let's just say 50%. That's 50% of the air that won't be going across the heater core. However, it is possible your mixing door isn't stuck, but it just can't close all the way. In which case, you will be able to divert all the air across your heater core.

Here is a link to a heater core bypass kit.

Reply With Quote Quick reply to this message
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What state or province do you live in?
Security Question
*Required, this field is not shown to others. Enter the last two characters of the word "Powerstroke"
Security Question #2
*Required, this field is not shown to others. "While balancing on a piece of wood, two inches by four inches known as a 2x4, john and his friend sally both spotted a dalmatian inside a truck with sirens, headed to put out a fire. State the animal mentioned in the sentence above."
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 01:27 PM.

Powered by vBulletin® Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.