Engine: Service and Repair

Fig. 7 Engine Replacement (Part 1 Of 2) (W/12 Valve Engine):

Fig. 7 Engine Replacement (Part 2 Of 2) (W/12 Valve Engine):

Refer to Fig. 7 when replacing engine.
1. Relieve fuel system pressure as described under Technician Safety Information.
2. Scribe hood hinge locations and remove hood.
3. Drain engine coolant, engine oil, transfer case fluid and transmission oil into appropriate containers.
4. On models with manual transmission, drain clutch hydraulic fluid into appropriate containers.
5. On models equipped with A/C, discharge refrigerant into appropriate container.

Fig. 1 Under Guard Components:

6. Raise and support vehicle, then remove snow protection undercover, skid plate, transfer case protector and cross shaft protector, Fig. 1.
7. Remove transmission and transfer case assembly. Refer to Transmission and Drivetrain in appropriate transmission section.
8. Disconnect radiator upper and lower hoses and overflow tube, then remove fan shroud.
9. On models with automatic transmission, remove oil cooler hose and tube assemblies.
1O. Remove radiator and bushings.
11. Disconnect front exhaust pipe from engine.
12. Remove air cleaner duct.
13. Remove engine drive belts.
14. Remove A/C compressor and position aside. Leave compressor lines connected.
15. Disconnect oil cooler hoses from engine.
16. Remove power steering pump, if equipped and position aside. Leave pressure and return hoses connected.
17. Disconnect fuel high pressure hose. Cover fuel pipe line with a rag as fuel pressure may remain.
18. Disconnect fuel return hose.
19. Disconnect vacuum hose, Fig. 7.
20. Disconnect water hoses from engine.
21. Disconnect electrical wiring and electrical sensors.
22. Remove ignition coil and power transistor assembly.
23. Disconnect purge hose and brake booster hose.
24. Disconnect accelerator cable, bracket, and cruise control cable, if equipped.
25. Remove heat protector, then the engine mounting bolts.
26. Connect suitable engine lifting equipment, ensure all cables, hoses and harness connectors are positioned aside, then remove engine assembly.
27. Reverse procedure to install.