Dodge Dakota Sport 2001 Service Manual page 1245

9 - 216 ENGINE 5.9L
ENGINE 5.9L (Continued)
CONDITION
ENGINE MISSES ON
ACCELERATION
DIAGNOSIS AND TESTING— ENGINE
DIAGNOSIS - MECHANICAL
CONDITION
NOISY VALVES/LIFTERS
POSSIBLE CAUSES
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 MECHANICAL DIAGNOSIS CHART
POSSIBLE CAUSES
1. High or low oil level in crankcase
2. Thin or diluted oil
CORRECTION
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)
CORRECTION
1. Check for correct oil level. Adjust
oil level by draining or adding as
needed
2. Change oil. (Refer to 9 -
ENGINE/LUBRICATION/OIL -
STANDARD PROCEDURE)
AN