08-07-09, 04:52 PM
How do you replace the Air Conditioning recycling clutch orfice switch on a 1999 Escalade? I think I have found the "bad" one on the low side of the AC Port. Is it under pressure? Anything I should know?
It is AC Delco part # 15-2962 or GM Part # 52466358
It was diagnosed by the dealer as the problem. Blowing hot air.....had the AC Compressor replaced about a year ago (but less than 7,500 miles) and brought it to the dealer thinking my problem was related to that and would be covered under my "lifetime" warranty.
They had to order the part and I just picked it up. Doesn't look too complicated, but you never know!
Being without AC in Florida since June is a great weight loss program!
Could not quite find what you are looking for in the shop manual, searching AC Delco or GM part number you supplied didnt help either. Here is a list or repair instructions available.
1999 Cadillac Escalade - HVAC - HVAC Systems - Manual - Repair Instructions
Select a document to view: Refrigerant Recovery and Recharging
Compressor Replacement 6.5L
Compressor Replacement 5.0L, 5.7L
Compressor Replacement 7.4L
Compressor Clutch Plate and Hub Assembly Removal HT6/HD6/HU6
Clutch Rotor and/or Bearing Removal HT6/HD6/HU6
Compressor Clutch Coil Removal HT6/HD6/HU6
Compressor Shaft Seal Removal HT6/HD6/HU6
Compressor Pressure Relief Valve Removal HT6/HD6/HU6
Compressor Control Switches Removal HT6/HD6
Compressor Clutch Plate/Hub Assembly Install HT6/HD6/HU6
Clutch Rotor and/or Bearing Install HT6/HD6/HU6
Compressor Clutch Coil Install HT6/HD6/HU6
Compressor Shaft Seal Install HT6/HD6
Compressor Pressure Relief Valve Install HT6/HD6
Compressor Control Switches Install HT6/HD6/HU6
Compressor Leak Testing HT6/HD6
Compressor Shaft Seal Replacement
Compressor Pressure Relief Valve Replacement 7.4L
Compressor Pressure Relief Valve Replacement All Except 7.4L
Compressor Sealing Washers Replacement
Compressor Hose Assembly Replacement Gasoline Engines
Compressor Hose Assembly Replacement Diesel Engines
Evaporator Tube Replacement
Air Conditioning (A/C) Hose Replacement - Auxiliary
Expansion (Orifice) Tube Replacement C60
Expansion (Orifice) Tube Replacement C69
Blower Motor Relay Replacement
Blower Motor Resistor Replacement
Blower Motor and Fan Replacement
Evaporator Core Replacement
Heater Core Replacement
Heater Hoses Replacement
Heater Water Valve Replacement
Control Assembly Replacement
Blower Switch Replacement
Mode Actuator Replacement
Temperature Actuator Replacement
Air Distributor Duct Replacement
Control Assembly Replacement - Front Auxiliary Air Conditioning (A/C)
Control Assembly Replacement - Auxiliary Suburban
Control Assembly Replacement - Auxiliary 4-Door Utility
Expansion (Orifice) Tube Replacement - Auxiliary
Thermal Expansion Valve Replacement - Auxiliary
Compressor/Condenser Hose Replacement - Auxiliary 5.7L
Compressor/Condenser Hose Replacement - Auxiliary 7.4L
Compressor/Condenser Hose Replacement - Auxiliary 6.5L
Evaporator Core Replacement - Auxiliary Suburban
Evaporator Core Replacement - Auxiliary 4-Door Utility
Blower Motor Resistor Replacement - Auxiliary Suburban
Blower Motor Resistor Replacement - Auxiliary 4-Door Utility
Blower Motor and Fan Replacement - Auxiliary Suburban
Blower Motor and Fan Replacement - Auxiliary 4-Door Utility
Mode Actuator Replacement - Auxiliary
08-08-09, 08:59 PM
Thanks for trying. I think it is probably in this section: Compressor Control Switches Install HT6/HD6/HU6
They call it a "relay switch" on the work order from the dealer. I will give it a go. Not like I can make it any worse! (I hope).
Here is what I got from this section:
Compressor Control Switches Install HT6/HD6/HU6
J 5403 Snap Ring Pliers
If you reinstall an existing control switch in the compressor, use a new O-ring and a new retainer ring. An O-ring and a retainer ring are included in a new switch kit.
Lubricate the new O-ring using clean refrigerant oil.
Install the new O-ring into the groove in the switch cavity.
Lubricate the control switch housing using clean refrigerant oil.
Install the switch (2) into the switch cavity until the switch bottoms in the cavity.
Using the J 5403 , install the switch retaining ring. Ensure that the high point of the curved sides is adjacent to the switch housing. Ensure that the retaining ring is properly seated in the switch cavity retaining groove.
Leak test according to bench test procedure.
Unfortunately I dunno how to do cut and paste with pics! It shows that switch being on the back of the compressor itself. Good luck!
08-09-09, 08:50 PM
Thanks but I figured it out. It was actually on the Accumulator Bottle on the passenger side of the firewall. I will post some pix.
Very easy and the fact the dealer left the connection off made it easy to find!
Thanks to all that tried!