Passenger/driver split temperatures intermittent/second teeny

MRSHADE

MEMBER
2005 CADILLAC DEVILLE DTS
4.6L
V8
FWD
AUTOMATIC
130,000 MILES

I have heard there is an AC heat actuator door thing that is the culprit.
Does anyone know of a video or "how to" to get this seems easy job if I can squeeze my 220 lbs in at those angles.
Can a faulty tire pressure hose be easily found and replaced? Other three accurate so just the one I am tiring of the message.

1 Reply

HMAC300

MECHANIC
48,601 POSTS

I am assuming you are not getting heat/cold out of one side of heater. Try pulling heater fuse with key on for sixty seconds they will reset and that may be the problem. Otherwise it can be something with the auto temperature also causing it. I will send a picture of actuator. However, the tire pressure if a monitor has to have the tire removed so they can get it out, it is below the valve stem. You can also try a reset on that if tire is full If you still have your manual it will tell you how to do it. To replace the actuator you have to pull the HVAC unit out which means the dash. So it is probably not something you want to do.

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