Dodge dakota 2002 Service Manual page 1476

DR
ENGINE - 5.9L (Continued)
CONDITION
ENGINE STALLS OR
ROUGH IDLE
ENGINE MISSES ON
ACCELERATION
POSSIBLE CAUSES
12. Faulty ignition coil
1. Carbon build-up on throttle plate
2. Engine idle speed too low
3. Worn or incorrectly gapped spark plugs
4. Worn or burned distributor rotor
5. Spark plug cables defective or crossed
6. Faulty coil
7. Intake manifold vacuum leak
1. Worn or incorrectly gapped spark plugs
2. Spark plug cables defective or crossed
3. Dirt in fuel system
4. Burned, warped or pitted valves
5. Faulty coil
ENGINE - 5.9L
CORRECTION
12. Test and replace, as necessary (Refer
to 8 - ELECTRICAL/IGNITION CONTROL/
IGNITION COIL - REMOVAL).
1. Remove throttle body and de-carbon.
(Refer to 14 - FUEL SYSTEM/FUEL
INJECTION/THROTTLE BODY -
REMOVAL).
2. Check Idle Air Control circuit. (Refer to
14 - FUEL SYSTEM/FUEL INJECTION/
IDLE AIR CONTROL MOTOR -
DESCRIPTION)
3. Replace or clean and re-gap spark
plugs (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG -
CLEANING)
4. Install new distributor rotor
5. Check for correct firing order or replace
spark plug cables. (Refer to 8 -
ELECTRICAL/IGNITION CONTROL/
SPARK PLUG CABLE - DIAGNOSIS AND
TESTING)
6. Test and replace, if necessary (Refer to
8 - ELECTRICAL/IGNITION CONTROL/
IGNITION COIL - REMOVAL)
7. Inspect intake manifold gasket and
vacuum hoses (Refer to 9 - ENGINE/
MANIFOLDS/INTAKE MANIFOLD -
DIAGNOSIS AND TESTING).
1. Replace spark plugs or clean and set
gap. (Refer to 8 - ELECTRICAL/IGNITION
CONTROL/SPARK PLUG - CLEANING)
2. Replace or rewire secondary ignition
cables. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG
CABLE - REMOVAL)
3. Clean fuel system
4. Install new valves
5. Test and replace as necessary (Refer to
8 - ELECTRICAL/IGNITION CONTROL/
IGNITION COIL - REMOVAL)
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