Contents: Removal ⤓ Installation ⤓
Attention! To dismantle engines of all modifications, it is necessary to remove the transmission, transfer case and front propeller shaft (see subsection 9.3.6, subsection 9.1.6 and subsection 9.3.9). When dismantling the engine, apply marks of mutual orientation to the removed units and the hood, clearly mark all disconnected wires and hoses. When removing 3.0L and 3.5L engines, do not allow the temporarily disconnected air conditioner and power steering pump to hang down by the hoses. Please note that when removing the engine, you should be extremely careful, since the gaps between the engine and the body panels are small, and the unit itself has significant weight.
Disconnectable units, hoses and wires when dismantling the 3.5L engine
11. Engine control system harness; 12. Starter and generator harness; 13. Oil cooler joint; 14. Accelerator cable; 15. Throttle cable; 16. Brake booster hose; 17. Joint of the fuel line; 18. Heater hose; 19. Oil pressure sensor connector; 20. Engine support bolt; 21. Engine
Removal
1. Remove the hood.
2. Remove the battery and tray.
3. Remove the cruise control intermediate rod. To do this, do the following:
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- unscrew the bolt and remove the protective cover of the rod;
- disconnect the throttle cable, accelerator cable and cruise control cable from the rod. Do not unscrew the adjusting bolts and nuts;
- unscrew 4 bolts and remove the intermediate rod;
- remove the traction bracket, store all bolts and screws in separate bags to screw back into place.
4. Raise the vehicle and remove the engine and transmission shields.
5. Disconnect the ground.
6. Drain the fluid from the cooling system. Drain the oil from the transmission and engine.
7. Disconnect the radiator hoses and other cooling system hoses from the engine.
8. Remove the fan shroud.
9. Remove the radiator.
10. Disconnect the exhaust pipes from the manifolds.
11. Remove the transmission (see subsection 9.3.6).
12. Remove the power steering pump and set it aside without disconnecting it from the line.
13. Remove the generator drive belt.
14. Remove the air conditioner without disconnecting it from the line, move it to the side and secure it.
15. Remove the coolant pump pulley with the fan.
16. Disconnect all wires from the engine (starter, generator, control system and sensors).
17. Unscrew the oil cooler nipple.
18. Disconnect the brake booster hose.
19. Disconnect the fuel hoses from the surge chamber and the heater hoses at the rear of the intake manifold.
20. Attach the hoist and lift the engine.
21. Remove the engine mount shields and unscrew the bolts securing the engine mounts to the frame.
22. Carefully lift the engine and remove it from the engine compartment. Place the engine on stands or wooden blocks (not on a pallet).
Installation
The engine is installed in reverse order. Tighten the support bolts to 44 N·m. Replace the exhaust pipe gasket on the manifolds. Tighten the fan pulley mounting bolts to 10–12 N·m. Tighten the radiator mounting bolts to 8–11 N·m. Fill with fresh fluid and oil, start the engine. After warming up, restore fluid levels. Re-adjust throttle cable, belts, idle speed.