Another Climate Control Mystery - 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 07-26-2012, 10:35 AM Thread Starter
Reverie's Avatar
Join Date: Mar 2009
Location: Marietta, GA
Posts: 50
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Another Climate Control Mystery

For the last year my climate control panel has indicated an outside air temperature of 50F. I performed all of the usual steps and got these results:

1. Checked all the connections and plugs. No change
2. Removed the Outside Air Temperature Sensor: No change.
3. Jumpered the connection where the Air Temperature Sensor Usually Mounts: No change.
4. Installed new Temperature Sensor: Still reads 50 but will occasionally start ticking down to -18F then slowly returns to 50.
5. Reinstalled Original Temperature Sensor: Back to a reading of 50F.
6. Had the A/C Serviced: No change in the reading.
7. Took it To the Ford Dealership: After the indifferent questions, the technician spent ten minutes looking at the truck and told me it was the outside air temperature sensor. He then tried to convince me my customer installed XM Radio antenna was the sensor. That is a $110 I will never get back.
8. Replaced the Control Panel: No Change. Want to buy a perfectly good control panel? Cheap?

BONUS SYMPTOM: Like most of the country, we are experiencing some very hot temperatures right now. Occasionally, when the temperature exceeds 95F, the indicated outside temperature will start ticking upward until it accurately reads the outside temperature. Then the inside temperature works as designed and life is grand. Until the truck is shut off or the temperature outside falls below about 95F.

Every so-called expert has looked at this, given me long and drawn out explanations but nobody can identify the problem. I have traced the wire as far as I can looking for intermittant open but without an accurate wiring diagram I can't get back to the panel where I ASSUME the temperature info is mixed with the cabin temperature to schedule the air conditioned air.

Has anyone seen this and has anyone got a solution? It is driving me crazy.

Reverie a/k/a "Melting in Atlanta"

2003 Eddie Bauer, 6.0 Oil Burner, 4x4
Hardened Studs, 4" Magnaflow, Uprated Brakes, Everything MacNeil Makes for My Truck, Monster Stereo Setup, SCT Tuner

Towing like it isn't even back there!
Reverie is offline  
Sponsored Links
post #2 of 3 Old 08-22-2012, 03:55 AM
Join Date: Nov 2010
Posts: 46
Thanks: 1
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Try to track down a wiring schematic and/or just figure out where the wires go. I think it's a good idea to verify there isn't a wiring problem. If I had to guess, the ECM(or whatever Ford calls it) is having a problem. I'm pretty sure the control panel is just displays and buttons, the actual control of the system is done by the ECM. Know anyone that would let you borrow their ECM to test?
airjeff is offline  
post #3 of 3 Old 08-22-2012, 03:50 PM
Compression Ignition Addict
BucOff's Avatar
Join Date: Apr 2012
Location: Winder, Ga.
Posts: 1,712
Thanks: 24
Thanked 9 Times in 8 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
You could try contacting Sargar on the ORG. He is a member of the Georgia Powerstroke Diesel Association located in the Georgia section. He has a shop in the Loganville area and may be able to help. Not sure of his costs for diagnostics, but I would fully trust his abilities first and above any dealer in town.

Stock Turbo / Stock Sticks
439 rwhp/863 lb/ft.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by BucOff; 08-23-2012 at 08:03 PM.
BucOff is offline  
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:


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