I have a 2008 f-250 and the air conditioning on the driver side blows out hot air when the a/c is turned on.The passenger side works fine as it should any thoughts on what is going on . First time to post on this site . Thanks for any help.

 

I believe you have a blend door problem.

 

Where is that located at? Is it something I could try to repair or is it better to take to a a/c person? Thanks for your help

 

I believe there are two doors. One can be repaired under the dash and the other requires dash removal to get to it. I have not done one on this particular truck but once you get to them they are straight forward. You can search the forum because there was previous threads about same issues.

 

OK I will look at the previous ones. Thanks for your time

 

As Tim Gunn says.. "Make that a/c work"

Most likely
1. Was there ever coke or something spilled from the dash down.
2. As above sticky door
3. Broken control gear arm or broken door

 

I am having a/c guy look at it next week. I will let you know. Thanks for the advice.

 

Sometimes running the EATC on demand self test, which will give you any diagnostic codes associated with the system, and will actuate all the blend doors and fans/motors. This MIGHT force a stuck door to work, but it's a long shot. Worth trying though. To accomplish this:

The Electronic Automatic Temperature Control (EATC) Module On-Demand Self Test will detect concerns in the system control functions and will display on-demand (hard fault) DTCs for concerns that are present during the self-test. The vehicle interior temperature should be between 4°C-38°C (40°F-100°F) when carrying out the self-test. If the temperatures are not within the specified ranges, false DTCs may be displayed.

The self-test can be initiated after cycling the ignition switch from OFF to ON. Normal operation of the climate control system stops when the self-test is activated.

To enter the self-test, press the OFF and DEFROST buttons simultaneously and release, then press the AUTO button within 2 seconds. The display will show a flashing blower icon for 20 seconds, after which all vacuum fluorescent segments will be displayed if there are no on-demand DTCs present. If DTCs are present, the EATC module will display "00 00" and then on-demand DTCs. Record all DTCs displayed.

If any DTCs appear during the self-test, carry out the diagnostic procedure. Refer to the Electronic Manual Temperature Control (EMTC) Module and Electronic Automatic Temperature Control (EATC) Module DTC Chart and follow the ACTION for each DTC given.

To exit the self-test and retain all DTCs, press any button except DEFROST. The EATC module will exit the self-test and retain all DTCs.

To exit the self-test and clear all DTCs, press the DEFROST button. The EATC module will exit the self-test and all DTCs will be cleared.

Always exit the self-test before powering the system down (system turned OFF). Once the self-test is exited, the ignition switch must remain ON for at least 30 seconds to allow the door actuators to automatically recalibrate.

 

Thank you for all the responses. I dropped the truck off at the a/c shop today. I will post on here when the problem is repaired.

 

You guys need to try a different location, my AC seems to be working just fine.

 

Hey Bubba, I like your fabrication for the engine block heater plug. What all did you do on that? It looks sharp and am interested in doing the same/something similar to mine as I use mine so much it is unreal. Thanks!

 

It's a 15 watt marine plug, I put a female plug end on it with about 2 foot of cord and plugged it in to the block heater cord, taped it up real good. Only thing I don't like is it has a plastic push on cover, I might opt for a spring loaded one or screw on one. It's worked so far but it doesn't seem to close very tight. Many have put theirs in there valance at the bottom of the bumper but I opted for the bumper, besides I have a short valance (2WD) so it wouldn't have fit anyways.