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 TESTS W/CODES articles were performed below before diagnosing a symptom.
Symptoms available for diagnosis include following:
- Difficult To Start
- Surges Or Chuggles
- Lack Of Power, Sluggish Or Spongy Symptom
- Spark Knock/Detonation
- Hesitation, Sag Or Stumble
- Cuts Out Or Misses
- Poor Fuel Mileage
- Stalling, Rough, Unstable Or Incorrect Idle
- Excessive Exhaust Emissions Or Odors
- Backfire
- Dieseling (Run-On)