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 BASIC TESTING and appropriate TESTS W/CODES articles in the ENGINE PERFORMANCE Section were performed before diagnosing a symptom. Symptoms available for diagnosis include the following:

*  Engine Hard To Start

*  Engine Surges At Idle

*  Engine Has Rough Idle When Warm

*  Engine Misfiring Under Load

*  Engine Has Low Power

*  Excessive Fuel Consumption

*  Engine Will Not Shut Off

*  White Or Blue Exhaust Smoke

*  Incorrect Idle Speed

*  Engine Speed Will Not Increase

*  Fuel Injection Pump Runs Hot