Chrysler Stratus RHD 1997 Interactive Electronic Service Manual page 847

9 - 10 ENGINE
DIAGNOSIS AND TESTING (Continued)
ENGINE DIAGNOSIS—PERFORMANCE
CONDITION
ENGINE WILL NOT START
ENGINE STALLS OR ROUGH IDLE
ENGINE LOSS OF POWER
ENGINE MISSES ON ACCELERATION
ENGINE MISSES AT HIGH SPEED
POSSIBLE CAUSES
1. Weak battery.
2. Corroded or loose battery connections.
3. Faulty starter.
4. Moisture on ignition wires.
5. Faulty ignition cables.
6. Faulty coil or control unit.
7. Incorrect spark plug gap.
8. Dirt or water in fuel system.
9. Faulty fuel pump.
1. Idle speed set too low.
2. Idle mixture too lean or too rich.
3. Leak in intake manifold.
4. Incorrect ignition wiring.
5. Faulty coil.
1. Dirty or incorrectly gapped spark plugs.
2. Dirt or water in fuel system.
3. Faulty fuel pump.
4. Incorrect valve timing.
5. Blown cylinder head gasket.
6. Low compression.
7. Burned, warped or pitted valves.
8. Plugged or restricted exhaust system.
9. Faulty ignition cables.
10. Faulty coil.
1. Dirty or gap set too wide in spark plug.
2. Dirt in fuel system.
3. Burned, warped or pitted valves.
4. Faulty coil.
1. Dirty or gap set too wide in spark plug.
2. Faulty coil.
3. Dirty injector.
4. Dirt or water in fuel system.
CORRECTION
1. Test battery specific gravity. Charge or
replace as necessary.
2. Clean and tighten battery connections.
Apply a coat of light mineral grease to the
terminals.
3. Refer to Group 8A, Battery/Starter/
Charging System Diagnostics.
4. Wipe wires clean and dry.
5. Replace any cracked or shorted cables.
6. Test and replace, if necessary (refer to
Group 8D, Ignition System).
7. Set gap (refer to Group 8D, Ignition
System).
8. Clean system and replace fuel filter.
9. Install new fuel pump (refer to Group 14,
Fuel System).
1. Refer to Group 14, Fuel System.
2. Refer to Group 14, Fuel System.
3. Inspect intake manifold gasket and
vacuum hoses. Replace, if necessary (refer
to Group 11), Exhaust System & Intake
Manifold).
4. Install correct wiring.
5. Test and replace, if necessary (refer to
Group 8D, Ignition System).
1. Clean plugs and set gap (refer to Group
8D, Ignition System).
2. Clean system and replace fuel filter.
3. Install new fuel pump.
4. Correct valve timing.
5. Install new cylinder head gasket.
6. Test compression of each cylinder.
7. Install new valves.
8. Install new parts, as necessary.
9. Replace any cracked or shorted cables.
10. Test and replace, as necessary (refer to
Group 8D, Ignition System).
1. Clean spark plugs and set gap (refer to
Group 8D, Ignition System).
2. Clean fuel system.
3. Install new valves.
4. Test and replace, if necessary (refer to
Group 8D, Ignition System).
1. Clean spark plugs and set gap (refer to
Group 8D, Ignition System).
2. Test and replace, as necessary (refer to
Group 8D, Ignition System).
3. Clean injectors.
4. Clean system and replace fuel filter.
JA