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:

• HARD START OR NO START (CRANKS NORMALLY) 
• ENGINE STALLS 
• HESITATION OR SURGE 
• SPARK KNOCK/DETONATION 
• LACK OF POWER/POOR ACCELERATION 
• HIGH OR LOW IDLE 
• ROUGH IDLE 
• IDLING VIBRATION 
• SLOW RETURN TO IDLE OR NO RETURN TO IDLE 
• OVERHEATS OR WATER TEMPERATURE HIGH 
• EXCESSIVE FUEL CONSUMPTION 
• EXCESSIVE OIL CONSUMPTION 
• BATTERY DEAD OR UNDER CHARGE