Dodge 2000 DURANGO Service Manual page 518

DN
DIAGNOSIS AND TESTING (Continued)
CONDITION
ENGINE LOSS OF POWER
ENGINE MISSES ON
ACCELERATION
ENGINE MISSES AT HIGH SPEED
POSSIBLE CAUSE
1. Incorrect ignition timing.
2. Worn or burned distributor rotor.
3. Worn distributor shaft.
4. Dirty or incorrectly gapped spark
plugs.
5. Dirt or water in fuel system.
6. Faulty fuel pump.
7. Blown cylinder head gasket.
8. Low compression.
9. Burned, warped or pitted valves.
10. Plugged or restricted exhaust
system.
11. Faulty ignition cables.
12. Faulty coil.
13. Incorrect cam timing.
1. Spark plugs dirty or incorrectly
gapped.
2. Incorrect ignition timing.
3. Dirt in fuel system.
4. Burned, warped or pitted valves.
5. Faulty coil.
6. Incorrect cam timing.
1. Spark plugs dirty or incorrectly
gapped.
2. Worn Distributor Shaft.
3. Worn or burned distributor rotor.
4. Faulty coil.
5. Incorrect ignition timing.
6. Dirt or water in fuel system.
7. Incorrect cam timing.
4.7L ENGINE
CORRECTION
1. Refer to Group 8D, Ignition
System.
2. Replace distributor rotor.
3. Refer to Group 8D, Ignition
System.
4. Refer to Group 8D, Ignition
System.
5. Clean system and replace fuel
filter.
6. Refer to Group 14, Fuel System.
7. Replace cylinder head gasket.
8. Test compression, repair as
necessary.
9. Replace as necessary.
10. Inspect and replace as
necessary.
11. Replace as necessary.
12. Refer to Group 8D, Ignition
System.
13. Refer to Valve Timing in this
section.
1. Refer to Group 8D, Ignition
System.
2. Refer to Group 8D, Ignition
System.
3. Clean fuel system.
4. Replcae as necessary.
5. Refer to Group 8D, Ignition
System.
6. Refer to Valve Timing in this
section.
1. Refer to Group 8D, Ignition
System.
2. Refer to Group 8D, Ignition
System.
3. Replace distributor rotor.
4. Refer to Group 8D, Ignition
System.
5. Refer to Group 8D, Ignition
System.
6. Clean system and replace fuel
filter.
7. Refer to Valve Timing in this
section.
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