Operation CHARM: Car repair manuals for everyone.
Home >> Cadillac >> 2002 >> Eldorado V8-4.6L VIN Y >> Repair and Diagnosis >> Heating and Air Conditioning >> Expansion Block/Orifice Tube >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Expansion Block/Orifice Tube: Service and Repair

EXPANSION (ORIFICE) TUBE REPLACEMENT

TOOLS REQUIRED
^ J 26549-E Orifice Tube Remover
^ J 39400-A Halogen Leak Detector

REMOVAL PROCEDURE




1. Recover the refrigerant.
2. Remove the refrigerant line screw and the clip.
3. Disconnect the evaporator inlet pipe connection.




4. Use a J 26549-E to remove the expansion tube.

INSTALLATION PROCEDURE




1. Use clean 525 viscosity refrigerant oil to coat the O-rings.
2. Install the expansion tube into the pipe with the short screen towards the evaporator.

NOTE: Refer to Fastener Notice in Service Precautions.




3. Connect the expansion tube dual O-ring joint.

Tighten
Tighten the dual O-ring joint to 24 N.m (18 lb ft).

4. Install the refrigerant line screw and the clip.
5. Recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
6. Leak test the fittings of the component using the J 39400-A.
pro multis · About Operation CHARM