CONTENTS
CLICK OR RATTLE AT WHEELS
DEEP, HEAVY, THUDDING SOUNDCONTENTS
SOUNDS
UNDERHOOD
RHYTHMIC
ENGINE SPUTTERS
CONDITION(S)
- ENGINE SPUTTERS (RUNS ON) AFTER IGNITION KEY IS TURNED OFF
- ENGINE COUGHS DURING OPERATION
POTENTIAL CAUSE(S)
CHECK THESE FIRST:
1. EXCESSIVE ENGINE IDLE SPEED
Have engine idle speed professionally reduced.2. FAULTY IGNITION TIMING
Have ignition timing professionally adjusted.3. SPARK PLUG HEAT RANGE TOO HIGH
Install new spark plug(s) with lower heat range.CHECK THESE NEXT:
4. INFERIOR OR LOW OCTANE GASOLINE
Utilize higher quality or higher octane gasoline.
Install new spark plug(s).5. FAULTY POSITIVE CRANKCASE VENTILATION (PCV) VALVE
Replace PCV valve.6. FAULTY EXHAUST GAS RECIRCULATION (EGR) VALVE
Have EGR valve professionally repaired or replaced.CHECK THESE LAST:
7. ENGINE OVERHEATING
Have cause of overheating corrected.8. FAULTY FUEL INJECTORS
Have fuel injectors professionally replaced.
CONTENTS CLICK OR RATTLE AT WHEELS DEEP, HEAVY, THUDDING SOUND