Rear fan airflow issues - Ford Powerstroke Diesel Forum
6.0L Ford Excursion Discussion This forum is for topics relating to the excursion only.

LinkBack Thread Tools Display Modes
post #1 of 3 Old 02-28-2014, 01:43 PM Thread Starter
Compression Ignition Addict
Join Date: Mar 2011
Location: Chicago, IL
Posts: 241
Thanks: 80
Thanked 3 Times in 3 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Rear fan airflow issues


I have been chasing down gremlins in my rear ac and one of them is that the air coming out of the 4 rear ducts seem very low (in volume) when the fan is on the high position. I can hear the fan spinning loudly in the rear but the air seems just like a slight breeze out of the front 2 vents and the rear are only slightly stronger. I had a 00 Ex back in 07 and don't remember how fast the air came out but in my 06 Explorer and 03 Navigator when the rear fan was on high I could feel a good blast coming out all rear vents. What should I start to look at?

15 F250 XL 6.7L CC LB 4x4 (temp work truck)
03 Excursion Ltd 6.0L ARP studs/HG, turbo back exhaust, K&N CAI, EGR delete, 6.4L banjo bolts, blue spring, coolant filter, IDP tunes, SCT Livewire (regrettably sold)
08 Jayco 31 BHDS G2
96 Regal 258 Commodore
rowekmr is offline  
post #2 of 3 Old 02-28-2014, 02:25 PM
Premium Member
Term3's Avatar
Join Date: Feb 2011
Location: Edmonton, Alberta Canada
Posts: 3,957
Thanks: 0
Thanked 34 Times in 32 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 1 reviews
Check for air flow that comes out behind second row seats, assuming you have the selector going to the upper vents only. If its high then it's an air door issue. I've never opened that system up myself but should be easy to fix.

Sent from App

SCT, no studs...yet, Dual OEM intake air filter housings, Banks intercooler & intake elbow, Banks exhaust system, Windrunner ported intake manifold, Bullet Proof Diesel remote oil cooler & thermostat, AirDog2 (plus a couple spares), Power steering filter (Amsoil dual-bypass), MagTec deep ATF pan, Electric oil pre-lub pump, Dakota Digital gauges.
Term3 is offline  
post #3 of 3 Old 02-28-2014, 02:29 PM
ZMANN's Avatar
Join Date: Feb 2008
Posts: 16,732
Thanks: 763
Thanked 839 Times in 808 Posts
Mentioned: 94 Post(s)
Quoted: 1026 Post(s)
Feedback Score: 0 reviews
another thing is see if you can detect a change in fan speeds using the selector

Please donate to DTR Ron's Memorial
We Miss you Ronnie
ZMANN is online now  

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:


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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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

For the best viewing experience please update your browser to Google Chrome