Symptom Diagnosis

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

• No Start - Cold Engine
• No Start - Warm Engine
• Starts But Stalls
• Hard To Start - Cold Engine
• Erratic Idle - Warm-Up
• Backfiring
• Incorrect Idle Speed
• Hesitation - Acceleration
• Hesitation - Coasting
• Knocking
• Engine Misfire - All Conditions
• Insufficient Engine Power
• Poor Fuel Economy
• Excessive HC & NOx