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Evaporator Block Replacement - Auxiliary|Page 10945 > < Evaporator Block Replacement - Auxiliary
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Expansion Block/Orifice Tube: Service and Repair
Expansion (Orifice) Tube Replacement

Trailblazer, Envoy, and Bravada

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 accumulator.
3. Remove the coolant reservoir.

4. Remove the evaporator tube nut (3) at the evaporator (1).
5. Remove the evaporator tube (4) from the evaporator (1).

6. Remove the O-ring seal and discard.
7. Remove the nut from the exaporator tube block fitting.
8. Separate the evaporator tubes (4,6) at the block fitting.

Evaporator Block Replacement - Auxiliary|Page 10945 > < Evaporator Block Replacement - Auxiliary