Expansion Valve: Service and Repair

Thermostatic Expansion Valve (TXV) Replacement

Service repair no - 82.25.01

Remove
1. Depressurize A/C system. Service and Repair
2. Remove IAC valve.





3. Release throttle and cruise control cables from clips on manifold chamber and position cables aside.





4. Remove bolt securing engine harness mounting bracket to manifold chamber.





5. Remove nut securing engine harness to bracket on bulkhead and release harness.
6. Remove clamp securing A/C pipes to bulkhead.





7. Remove bolt securing A/C pipe clamp to TXV and position clamp aside.
8. Release A/C pipes from TXV, discard 'O' rings and position pipes aside.

CAUTION: Immediately cap all air conditioning pipes to prevent ingress of dirt and moisture into the system.

9. Remove 2 bolts securing TXV to evaporator pipes and remove TXV.
10. Remove and discard 'O' rings from evaporator pipes.

CAUTION: Immediately cap all air conditioning pipes to prevent ingress of dirt and moisture into the system.

Refit
11. Ensure mating faces of TXV and pipes are clean.
12. Lubricate new 'O' rings with compressor oil and fit rings to pipes.
13. Fit TXV to evaporator pipes, ensuring that TXV is fully engaged to pipes.
14. Fit and tighten bolts securing TXV to evaporator pipes.
15. Fit A/C pipes to TXV, position pipe clamp and secure with bolt.
16. Secure A/C pipes to bulkhead with clamp.
17. Fit engine harness to bracket on bulkhead and secure with nut.
18. Align engine harness mounting bracket to manifold chamber and secure with bolt.
19. Fit throttle and cruise control cables to clips.
20. Fit IAC valve.
21. Recharge A/C system. Service and Repair