Dodge RAM 1500 1998 Owner's Manual page 1407

9 - 184 ENGINE - 5.7L
ENGINE - 5.7L (Continued)
CONDITION
ENGINE STALLS OR ROUGH IDLE
1. ENGINE LOSS OF POWER
1. ENGINE MISSES ON
ACCELERATION
1. ENGINE MISSES AT HIGH SPEED
POSSIBLE CAUSE
1. Idle speed set to low.
2. Idle mixture too lean or too rich.
3. Vacuum leak.
4. Faulty coil.
5. Incorrect engine timing.
1. Dirty or incorrectly gapped spark
plugs.
2. Dirt or water in fuel system.
3. Faulty fuel pump.
4. Blown cylinder head gasket.
5. Low compression.
6. Burned, warped or pitted valves.
7. Plugged or restricted exhaust
system.
8. Faulty coil.
1. Spark plugs dirty or incorrectly
gapped.
2. Dirt in fuel system.
3. Burned, warped or pitted valves.
4. Faulty coil.
1. Spark plugs dirty or incorrectly
gapped.
2. Faulty coil.
3. Dirt or water in fuel system.
CORRECTION
1. (Refer to 14 - FUEL SYSTEM/
FUEL INJECTION/IDLE AIR
CONTROL MOTOR - REMOVAL).
2. Refer to Powertrain Diagnosis
Information.
3. Inspect intake manifold and
vacuum hoses, repair or replace as
necessary.
4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION COIL
- REMOVAL).
5. (Refer to 9 - ENGINE/VALVE
TIMING - STANDARD PROCEDURE).
1. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG -
CLEANING).
2. Clean system and replace fuel
filter.
3. (Refer to 14 - FUEL SYSTEM/
FUEL DELIVERY/FUEL PUMP -
DIAGNOSIS AND TESTING).
4. Replace cylinder head gasket.
5. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING).
6. Replace as necessary.
7. Inspect and replace as necessary.
8. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION COIL
- REMOVAL).
1. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG -
CLEANING).
2. Clean fuel system.
3. Replcae as necessary.
4. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION COIL
- REMOVAL).
1. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG -
CLEANING).
2. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/IGNITION COIL
- REMOVAL).
3. Clean system and replace fuel
filter.
DR