Jeep Grand Cherokee WK. Manual — part 1168
1. Start the engine.
2. Spray a small stream of water (spray bottle) at the suspected leak area.
3. If engine RPM’S change, the area of the suspected leak has been found.
4. Repair as required.
REMOVAL
1. Perform the Fuel System Pressure Release procedure (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY - STAN-
DARD PROCEDURE).
2. Disconnect negative cable from battery.
3. Remove resonator assembly and air inlet hose.
4. Disconnect throttle and speed control cables.
5. Disconnect electrical connectors for the following components: Refer to FUEL SYSTEM for component locations.
•
Manifold Absolute Pressure (MAP) Sensor
•
Intake Air Temperature (IAT) Sensor
•
Throttle Position (TPS) Sensor
•
Coolant Temperature (CTS) Sensor
•
Idle Air Control (IAC) Motor
6. Disconnect vapor purge hose, brake booster hose, speed control servo hose, positive crankcase ventilation
(PCV) hose.
7. Remove the generator.
8. Remove the air conditioning compressor.
9. Disconnect left and right radio suppressor straps.
10. Disconnect and remove ignition coil towers.
11. Remove top oil dipstick tube retaining bolt and ground strap.
12. Remove fuel rail.
13. Remove throttle body assembly and mounting
bracket.
14. Drain cooling system below coolant temperature
level (Refer to 7 - COOLING - STANDARD PRO-
CEDURE).
15. Remove the heater hoses from the engine front
cover and the heater core.
16. Unclip and remove heater hoses and tubes from
intake manifold.
17. Support engine using engine support fixture (1),
special tool # 8534.
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18. Remove the right side engine mount to frame bolt
(3).
19. With the bolt removed, lower engine until engine
mount rests in frame mount.
20. Remove intake manifold retaining fasteners in
reverse order of tightening sequence.
21. Remove intake manifold.
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INSTALLATION
1. Install intake manifold gaskets.
2. Install intake manifold.
3. Install intake manifold retaining bolts and tighten in
sequence shown in to 12 N·m (105 in. lbs.).
4. Install left and right radio suppressor straps.
5. Install throttle body assembly.
6. Connect throttle cable and speed control cable to throttle body.
7. Install fuel rail.
8. Install ignition coil towers.
9. Position and install heater hoses and tubes onto intake manifold.
10. Install the heater hoses to the heater core and engine front cover.
11. Connect electrical connectors for the following components:
•
Manifold Absolute Pressure (MAP) Sensor
•
Intake Air Temperature (IAT) Sensor
•
Throttle Position (TPS) Sensor
•
Coolant Temperature (CTS) Sensor
•
Idle Air Control (IAC) Motor
•
Ignition coil towers
•
Fuel injectors
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12. Install top oil dipstick tube retaining bolt and
ground strap.
13. Install generator.
14. Install the air conditioning compressor.
15. Connect Vapor purge hose, Brake booster hose,
Speed control servo hose, Positive crankcase
ventilation (PCV) hose.
16. Fill cooling system (Refer to 7 - COOLING -
STANDARD PROCEDURE).
17. Raise engine using engine support fixture (1),
special tool # 8534.
18. Install the right side engine mount to frame bolt
(3).
19. Remove engine support fixture, special tool #
8534.
20. Install resonator assembly and air inlet hose.
21. Connect negative cable to battery.
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