ENGINE - 5.7L SERVICE INFORMATION
DESCRIPTION
The 5.7L engine (345 CID) eight-cylinder engine is a 90° V-Type lightweight, deep skirt cast iron block, aluminum heads, single cam, overhead valve engine with hydraulic roller tappets. The heads incorporate splayed valves with a hemispherical style combustion chamber and dual spark plugs. The cylinders are numbered from front to rear; 1, 3, 5, 7 on the left bank and 2, 4, 6, 8 on the right bank. The firing order is 1-8-4-3-6-5-7-2.
REMOVAL - ENGINE
1. Remove the strut tower support (1).
2. Remove the engine cover (1).
3. Perform the Fuel System Pressure Release procedure (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY - STANDARD PROCEDURE).
4. Disconnect the battery negative cable.
5. Remove the air cleaner resonator and duct work as an assembly.
6. Drain cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).
7. Remove the accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL).
8. Remove radiator fan shroud (Refer to 7 - COOLING/ENGINE/RADIATOR FAN - REMOVAL) .
9. Remove the A/C compressor with the lines attached. Secure compressor out of the way.
10. Remove generator assembly (Refer to 8 - ELECTRICAL/CHARGING/GENERATOR - REMOVAL).
11. Remove the intake manifold and IAFM as an assembly (Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANIFOLD - REMOVAL) .
12. Remove the ground wires from the rear of each cylinder head.
13. Disconnect the heater hoses (1).
NOTE: It is not necessary to disconnect P/S hoses from pump, for P/S pump removal.
14. Remove the power steering pump and set aside.
15. Disconnect the fuel supply line (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/QUICK CONNECT FITTING - STANDARD PROCEDURE).
16. Raise and support the vehicle on a hoist and drain the engine oil.
17. Remove engine front mount to frame bolts (3) and nuts.
18. Disconnect the transmission oil cooler lines from their retainers at the oil pan bolts.
19. Disconnect exhaust pipe at manifolds.
20. Disconnect the starter wires. Remove starter motor (1) (Refer to 8 - ELECTRICAL/STARTING/STARTER MOTOR - REMOVAL).
21. Remove the structural dust cover (1).
22. Remove drive plate to converter bolts.
23. Remove the oil pan to transmission bolts (1).
24. Remove transmission bell housing to engine block bolts (2).
25. Lower the vehicle.
26. Install engine lift fixture, special tool # 8984 and 8984–UPD.
27. Separate engine from transmission, remove engine from vehicle, and install engine assembly on a repair stand.
INSTALLATION - ENGINE
1. Install engine lift fixture Special tool # 8984 and 8984–UPD.
2. Position the engine in the engine compartment.
3. Lower engine into compartment and align engine with transmission.
4. Mate engine (1) and transmission (3) and install two transmission to engine block mounting bolts (2) finger tight.
5. Lower engine assembly until the engine mounts (2) rests in frame perches (1).
6. Install remaining transmission to engine block mounting bolts (2) and the oil pan to transmission bolts (1) and tighten.
7. Install and tighten engine mount to frame bolts (3) and nuts.
8. Install drive plate to torque converter bolts (1).
9. Install the structural dust cover (1).
10. Install the starter (1) and connect the starter wires (Refer to 8 - ELECTRICAL/STARTING/STARTER MOTOR - INSTALLATION).
11. Install exhaust pipe to manifold.
12. Lower the vehicle.
13. Remove engine lift fixture (2), special tool # 8984 and 8984–UPD.
14. Connect the fuel supply line (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/QUICK CONNECT FITTING - STANDARD PROCEDURE).
15. Reinstall the power steering pump.
16. Connect the heater hoses (1).
17. Reconnect the ground wires to the rear of each cylinder head.
18. Install the intake manifold. (Refer to 9 - ENGINE/MANIFOLDS/INTAKE MANIFOLD - INSTALLATION)
19. Install the generator (2), and wire connections (Refer to 8 - ELECTRICAL/CHARGING/GENERATOR - INSTALLATION).
20. Install a/c compressor (3) (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/A/C COMPRESSOR - INSTALLATION).
21. Install the accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - INSTALLATION).
22. Install the radiator fan shroud (Refer to 7 - COOLING/ENGINE/RADIATOR FAN - INSTALLATION) .
23. Connect the radiator lower hose.
24. Connect the transmission oil cooler lines to the radiator.
25. Connect the radiator upper hose.
26. Install the air cleaner resonator and duct work..
27. Add engine oil to crankcase (Refer to LUBRICATION & MAINTENANCE/FLUID TYPES - SPECIFICATIONS).
28. Fill cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).
29. Install the engine cover (1).
30. Install the strut tower support (1).
31. Connect battery negative cable.
32. Start engine and inspect for leaks.
33. Road test vehicle.