Engine: Service and Repair

ELDORADO & SEVILLE
1. Disconnect battery ground cable and drain cooling system.
2. Remove air cleaner assembly.
3. Mark position of hood hinges, disconnect necessary electrical connectors, then remove hood hinge bolts and the hood.
4. Remove engine cooling fan and serpentine drive belt.
5. Disconnect upper radiator and heater hoses from thermostat housing.
6. Disconnect electrical connectors from the following components: oil pressure switch, coolant temperature sensor, distributor, EGR solenoid, engine temperature switch, ISC motor, throttle position switch, injectors, MAT sensor, oxygen sensor, throttle body base warmer, alternator and ground wiring at alternator bracket.
7. Release engine harness from retainers and secure aside.
8. Disconnect accelerator, cruise control and transmission cables from throttle body.
9. Remove cruise control diaphragm brackets and secure assembly aside.
10. Disconnect oil and transmission cooler lines from radiator.
11. Disconnect remaining hoses and remove radiator.
12. Disconnect oil cooler lines at filter adapter and remove lines.
13. Remove oil cooler line bracket at transaxle and the air cleaner bracket.
14. Remove oil filter adapter housing.
15. Disconnect AIR tubes from diverter valve.
16. Remove front right and rear body cross braces.
17. Disconnect and remove right front heater hose and coolant reservoir.
18. Remove AIR filter box and bracket.
19. Remove idler pulley.
20. Disconnect power steering line bracket from right cylinder head, remove power steering pump and tensioner retaining bolts and secure assembly aside.
21. Discharge A/C system, disconnect A/C lines at accumulator and condenser, and plug lines and open fittings.
22. Connect suitable tool to fuel line Schrader valve and slowly bleed fuel system pressure into suitable container.
23. Disconnect fuel lines at throttle body and fuel line bracket from transaxle, then position fuel lines aside.
24. Remove EGR lines and brackets.
25. Disconnect vacuum modulator line and fuel filter and position aside.
26. Raise and support vehicle, remove starter shield, and disconnect starter wiring and block ground straps.
27. Remove exhaust crossover pipe and the starter motor.
28. Remove both flexplate dust shields and bolts securing torque converter to flexplate.
29. Remove A/C compressor dust shield.
30. Remove right front tire and wheel, then the outer wheelhouse plastic shield.
31. Remove right rear engine to transaxle mounting bolt and the lower engine damper nut.

Fig. 1 Right engine & transaxle mount. Eldorado & Seville:

Fig. 2 Left engine mount. Eldorado & Seville:

32. Remove front (left) engine mount nuts and right rear engine/transaxle mount bolts, Figs. 1 and 2.
33. Remove alternator and oxygen sensor wiring and the heater bypass bracket from right side of vehicle.
34. Remove right engine brace, then lower vehicle.
35. Remove 5 top engine to transaxle mounting bolts.
36. Install suitable lift equipment and support transaxle with suitable jack.
37. Raise engine and separate engine from transaxle, then remove engine from vehicle.
38. Reverse procedure to install.