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Home >> Cadillac >> 2004 >> DeVille V8-4.6L VIN 9 >> Repair and Diagnosis >> Heating and Air Conditioning >> Expansion Block/Orifice Tube >> Service and Repair
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Expansion Block/Orifice Tube: Service and Repair

EXPANSION (ORIFICE) TUBE REPLACEMENT

TOOLS REQUIRED
- J 38042 Dual O-Ring Tube Separator
- J 39400 Electronic Halogen Leak Detector

REMOVAL PROCEDURE




1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
2. Remove the evaporator hose from the accumulator cover.
3. Loosen the evaporator hose fitting at the expansion tube location.




4. Using J 38042, separate the evaporator hose fitting.




5. Remove the expansion tube from the evaporator hose.
6. Remove and discard the O-ring from the evaporator hose.

INSTALLATION PROCEDURE




1. Install the new O-ring to the evaporator hose.
2. Install the expansion tube into the evaporator hose.

NOTE: Refer to Fastener Notice in Service Precautions.




3. Connect the evaporator hose.

Tighten
Tighten the nut to 24 N.m (18 lb ft).




4. Position the evaporator hose on the accumulator cover and press to engage.
5. Recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging.
6. Leak test the fittings using the J 39400-A.
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