Symptom Diagnosis

Symptom checks cannot be used properly unless problem occurs while vehicle is being tested. To reduce diagnostic time, ensure steps in BASIC DIAGNOSTIC PROCEDURES and appropriate SELF-DIAGNOSTICS articles were performed before diagnosing a symptom. Following symptoms are available for diagnosis:

• ENGINE DOES NOT CRANK 
• CRANKS NORMALLY BUT WILL NOT START 
• CRANKS NORMALLY BUT DIFFICULT TO START 
• ROUGH OR UNSTABLE IDLE 
• HIGH IDLE AFTER WARM-UP 
• ENGINE STALLS SOON AFTER STARTING 
• ENGINE STALLS ON ACCELERATION 
• ENGINE STALLS ON DECELERATION 
• ENGINE STALLS INTERMITTENTLY 
• ENGINE HESITATES OR STUMBLES ON ACCELERATION 
• ENGINE SURGES WHILE CRUISING 
• LACK OF POWER 
• ENGINE RUNS ROUGH ON DECELERATION 
• ABNORMAL NOISE, DETONATION OR KNOCKING 
• FUEL ODOR 
• EXCESSIVE OIL CONSUMPTION 
• POOR FUEL MILEAGE