Yes, I hear they are a fortune at Cadillac.

1. Check the Black vacuum hose at the solenoid pack under the right side of the dash for engine vacuum.

2. If low or no vacuum is observed, check for a disconnected or misrouted vacuum supply hose in the engine compartment

Hello Loral,

If you have not done so already? make sure your has been recharged then run this simple test. make sure controls are set to manual, set (AC) to lowest setting set the to the highest setting, let it run with windows up doors closed for 10 minutes or until (AC) reaches the coldest point. Then open the doors you want to hear if the compressor changes in anyway if it do's then you may need to change it.

PS if the compressor changes to auto mode before it reaches coldest point then you it is time to change it.

Willie

Cannot do this without repair manual that details these repairs. The mode door actuator is what usually fails.

It depends. If the sheet metal was damaged, that will have to be repaired first, or the lock won't seat properly. That's done by a body shop. The lock itself would have to be looked at-by a locksmith. If it's not possible to repair, a new one can be installed and keyed to match. This is NOT something many car dealers or mechanics can do. Removal and replacement of the lock cylinder isn't very difficult, BTW-if not self-evident, a service manual should show how.

thank you but it is hydraulic>

Blend Door Actuator is located on the front of the HVAC housing to the right of the floor panel to the transmission tunnel.

When replacing Blend Door Actuator, you have to disabled the Airbag Systems first. Disconnect the battery negative terminal and wait fir atleast two minuets before starting the procedure for the Airbag system capacitor to discharged.

Here's how.
>you have to remove the Glove box door and the lower I/P Glove box door that soround the panel. Unplug the connectors and loosen the screws that holds the Blend Door Actuator to the HVAC housing. Pull out the Blend Door Actuator and install the new one. Reverse the procedure when installing.

Since i'm not sure if you have a TAPE drive regulator or not, ill just put both.

1. Remove the regulator (NOTE: This should be done when the regulator is moved from the door. Te regulator lift arms are under tension from the counterbalance spring and can cause serious injury if the motor is removed without locking the secotr gear in position)

2. Drill a hole through the regulator sector gear and back plate and install a screw and nut to lock the sector gear into position. Do not drill the hole closer than 1/2 in. to the edge of the sector gear or backplate.

3. Remove the rivets holding the motor to the regulator using a 3/16 drill bit.

4. Install the motor to the regulator using 3/16 rivets.
5. Install the regulator

For tape drive regulators

1. Remove the trim panel, sound absorber pad and water deflector
2. Disconnect the harness at the motor
3. Tape the window to the frame with pieces of cloth backed body tape to prevent the glass from dropping when the regulator is removed.

(NOTE: Unless the glass is taped or blocked in the up position, personal injusry or glass damage may happen)

4. The front doors have locating dimples in the innner panel to loacate the motor to regulator attaching bolts. Using a 3/4 in hole saw, drill three holes at the locating dimples

5. Remove the motor attaching bolts, disconnect the wire connector and remove the motor thorugh the access hole.

To install:

6. Lubricate the motor drive gear and regulator sector teeth. Attach the motor to the regulator and make sure the drive gear properly engages the sector teeth before installing the motor attaching bolts. Tighten the attaching bolts to 125 in/lbs.

7. Use waterproof tape to seal any holes outside the water deflector sealing area and install the trim.

Since i'm not sure if you have a TAPE drive regulator or not, ill just put both.

1. Remove the regulator (NOTE: This should be done when the regulator is moved from the door. Te regulator lift arms are under tension from the counterbalance spring and can cause serious injury if the motor is removed without locking the secotr gear in position)

2. Drill a hole through the regulator sector gear and back plate and install a screw and nut to lock the sector gear into position. Do not drill the hole closer than 1/2 in. to the edge of the sector gear or backplate.

3. Remove the rivets holding the motor to the regulator using a 3/16 drill bit.

4. Install the motor to the regulator using 3/16 rivets.
5. Install the regulator

For tape drive regulators

1. Remove the trim panel, sound absorber pad and water deflector
2. Disconnect the harness at the motor
3. Tape the window to the frame with pieces of cloth backed body tape to prevent the glass from dropping when the regulator is removed.

(NOTE: Unless the glass is taped or blocked in the up position, personal injusry or glass damage may happen)

4. The front doors have locating dimples in the innner panel to loacate the motor to regulator attaching bolts. Using a 3/4 in hole saw, drill three holes at the locating dimples

5. Remove the motor attaching bolts, disconnect the wire connector and remove the motor thorugh the access hole.

To install:

6. Lubricate the motor drive gear and regulator sector teeth. Attach the motor to the regulator and make sure the drive gear properly engages the sector teeth before installing the motor attaching bolts. Tighten the attaching bolts to 125 in/lbs.

7. Use waterproof tape to seal any holes outside the water deflector sealing area and install the trim.

Blend door actuator.

There is probably a second unit for the rear air. When you say it isn't working at all do you mean no air is coming out as in there is no fan, or that the air is coming out but it is not getting cold. I think you mean there is no air actually coming out, this could be caused by a bad blower motor or possibly the blower motor resistor. The rear auxilary blower motor is located in the rear cargo area on the right side behind the trim panels, they will need to be removed to gain access usually, unless they have made access panels to it not sure on the escalade but on the Yukon it all needs to be removed to get to it.

To have an idea on how to change your window regulator just click this link and you will find here a step by step guide and what tools are needed to change a window regulator http://www.automd.com/.../

maybe, i cant tell wiyhout checking. it could be your window control panel also. i hav both for $120 or $70 for either.
my number is 334-413-0844 pleae leave a message if i dont answer