Dodge Dakota (ND). Manual - part 862

NOTE: The 3.7L/4.7L Oil pump is released as an assembly. There are no DaimlerChrysler part numbers for
Sub-Assembly components. In the event the oil pump is not functioning or out of specification it must be
replaced as an assembly.

ASSEMBLY

1. Wash all parts in a suitable solvent and inspect carefully for damage or wear.

2. Install inner and outer rotors

3. Install oil pump cover plate and install cover bolts and tighten them to 12 N·m (105 in. lbs.).

4. Prime oil pump before installation by filling rotor cavity with engine oil.

5. If oil pressure is low and pump is within specifications, inspect for worn engine bearings or other causes for oil

pressure loss.

INSTALLATION

1. Position the oil pump onto the crankshaft and

install one oil pump retaining bolts.

2. Position the primary timing chain tensioner and

install three retaining bolts.

3. Tighten the oil pump and primary timing chain ten-

sioner retaining bolts to 28 N·m (250 in. lbs.) in the
sequence shown.

4. Install the secondary timing chain tensioners and

timing chains (Refer to 9 - ENGINE/VALVE TIM-
ING/TIMING BELT/CHAIN AND SPROCKETS -
INSTALLATION).

5. Install the timing chain cover (Refer to 9 - ENGINE/

VALVE TIMING/TIMING BELT / CHAIN COVER(S)
- INSTALLATION).

6. Install the pick-up tube and oil pan (Refer to 9 -

ENGINE/LUBRICATION/OIL

PAN

INSTALLATION).

MANIFOLD - INTAKE

DESCRIPTION

The intake manifold is made of a composite material and features long runners which maximizes low end torque.
The intake manifold uses single plane sealing which consist of eight individual press in place port gaskets to prevent
leaks. Eight studs and two bolts are used to fasten the intake to the head.

DIAGNOSIS AND TESTING - INTAKE MANIFOLD LEAKAGE

An intake manifold air leak is characterized by lower than normal manifold vacuum. Also, one or more cylinders may
not be functioning.

WARNING: USE EXTREME CAUTION WHEN THE ENGINE IS OPERATING. DO NOT STAND IN A DIRECT LINE
WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE PULLEYS, BELTS OR THE FAN. DO NOT WEAR
LOOSE CLOTHING.

1. Start the engine.

2. Spray a small stream of water at the suspected leak area.

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ENGINE - 4.7L SERVICE INFORMATION

3. If a change in RPM is observed the area of the suspected leak has been found.

4. Repair as required.

REMOVAL

1. Disconnect negative cable from battery.

2. Remove the wiper module (Refer to 8 - ELECTRICAL/WIPERS/WASHERS/WIPER MODULE - REMOVAL).

3. Remove resonator assembly and air inlet hose.

4. Disconnect throttle and speed control cables.

5. Disconnect 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

6. Disconnect brake booster hose and positive crankcase ventilation (PCV) hose.

7. Disconnect generator electrical connections.

8. Disconnect air conditioning compressor electrical connections.

9. Disconnect left and right radio suppressor straps.

10. Disconnect and remove ignition coil towers (Refer to 8 - ELECTRICAL/IGNITION CONTROL/IGNITION COIL -

REMOVAL).

11. Remove top oil dipstick tube retaining bolt and ground strap.

12. Bleed fuel system (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY - STANDARD PROCEDURE).

13. Remove fuel rail (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/FUEL RAIL - REMOVAL).

14. Remove throttle body assembly and mounting bracket.

15. Drain cooling system below coolant temperature level (Refer to 7 - COOLING - STANDARD PROCEDURE).

16. Remove the heater hoses from the engine front cover and the heater core.

17. Unclip and remove heater hoses and tubes from intake manifold.

18. Remove coolant temperature sensor (Refer to 7 - COOLING/ENGINE/ENGINE COOLANT TEMPERATURE

SENSO - REMOVAL).

19. Remove intake manifold retaining fasteners in

reverse order of tightening sequence.

20. Remove intake manifold.

ENGINE - 4.7L SERVICE INFORMATION

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CLEANING

NOTE: There is NO approved repair procedure for the intake manifold. If severe damage is found during
inspection, the intake manifold must be replaced.

Before installing the intake manifold thoroughly clean the mating surfaces. Use a suitable cleaning solvent, then air
dry.

INSPECTION

1. Inspect the intake sealing surface for cracks, nicks and distortion.

2. Inspect the intake manifold vacuum hose fittings for looseness or blockage.

3. Inspect the manifold to throttle body mating surface for cracks, nicks and distortion.

INSTALLATION

1. Install intake manifold gaskets.

2. Position 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. Install throttle cable bracket.

7. Connect throttle cable and speed control cable to throttle body.

8. Install fuel rail (Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/FUEL RAIL - INSTALLATION).

9. Install ignition coil towers (Refer to 8 - ELECTRICAL/IGNITION CONTROL/IGNITION COIL - INSTALLATION).

10. Position and install heater hoses and tubes onto intake manifold.

11. Install the heater hoses to the heater core and engine front cover.

12. 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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ENGINE - 4.7L SERVICE INFORMATION

13. Install top oil dipstick tube retaining bolt and ground strap.

14. Connect generator electrical connections.

15. Connect Brake booster hose and Positive crankcase ventilation (PCV) hose.

16. Fill cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).

17. Install the wiper module (Refer to 8 - ELECTRICAL/WIPERS/WASHERS/WIPER MODULE - INSTALLATION).

18. Install resonator assembly and air inlet hose.

19. Connect negative cable to battery.

MANIFOLD - EXHAUST

DESCRIPTION

The exhaust manifolds are log style with a patented flow enhancing design to maximize performance. The exhaust
manifolds are made of high silicon molybdenum cast iron. A perforated core graphite exhaust manifold gasket is
used to improve sealing to the cylinder head. The exhaust manifolds are covered by a three layer laminated heat
shield for thermal protection and noise reduction. The heat shields are fastened with a torque prevailing nut that is
backed off slightly to allow for the thermal expansion of the exhaust manifold.

REMOVAL

RIGHT EXHAUST MANIFOLD

1. Disconnect negative cable for battery.

2. Remove air cleaner assembly, resonator assembly and air inlet hose.

3. Remove accessory drive belt (Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL).

4. Remove A/C compressor (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING/A/C COMPRESSOR -

REMOVAL).

5. Remove A/C accumulator support bracket fastener.

6. Drain coolant below heater hose level (Refer to 7 - COOLING - STANDARD PROCEDURE).

7. Remove heater hoses at engine.

8. Remove fasteners attaching exhaust manifold heat shield.

9. Remove heat shield.

10. Remove upper exhaust manifold attaching fasteners.

11. Raise vehicle on hoist.

12. Disconnect exhaust pipe from manifold.

13. Remove fasteners attaching starter. Move starter aside.

14. Remove lower exhaust manifold attaching fasteners.

ENGINE - 4.7L SERVICE INFORMATION

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