2002 Mercury Mountaineer A/C Only Blow Cold on the Passenger Side

Dre827768 · 2015-06-29T22:12:18+00:00

M A/C is hot from the drivers side but cold on the passenger side. My compressor turns on for five seconds and then it turns off. The hoses that are connected to the compressor are new. What could be my problem?

WRENCHTECH

✓ASE Certified Mechanic
20,761 POSTS

Hello,

The fact that one side is cold means the system is charged. It sounds like you have a temperature blend door actuator for the drivers side. Here is a guide to help you see what you are in for when doing the job and the location of the actuator for your car below:

https://www.2carpros.com/articles/replace-blend-door-motor

Check out the diagrams (below). Please let us know what happens.

Cheers

Images (Click to enlarge)

Professional Diagram for 2CarPros Members
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Jun 30, 2015 at 2:09 AM

GBBERN12

MEMBER
0 POST

Thanks for the guide. I got the part for $65.00 and installed it all fixed! I love this site.

Sep 10, 2018 at 2:29 PM

E003DUARTE

MEMBER
2 POSTS

Back air blender to my vehicle listed above clicking noise?

Sep 11, 2018 at 11:22 AM (Merged)

JACOBANDNICKOLAS

✓ASE Certified Mechanic
110,194 POSTS

You need to check for loose or damaged linkage. Also, make sure the door is not sticking on something.

Sep 11, 2018 at 11:22 AM (Merged)

DABMECH

MEMBER
1 POST

No heat. Cutting a hole to access part.

Sep 11, 2018 at 11:22 AM (Merged)

MHPAUTOS

✓ASE Certified Mechanic
31,937 POSTS

What exactly are you doing and what are you cutting?

Sep 11, 2018 at 11:22 AM (Merged)

A/C only blow cold on the passenger side