Engine Malfunction can have several causes. Start by reading the fault codes via the diagnostic port under the dashboard or have the vehicle serviced at the dealership.
- There are basic rules of trouble diagnosis. First, you must know the system. Know the parts, or how they work together, and what happens if parts fail to work properly. Learn the service history of the system, how old its, what kind of treatment has been done, or has it been serviced before for the same problem. Learn the history of the complaint. Did the trouble start all at once, or did it come gradually?
- Do not cure the symptom and leave the cause. For example. do not just recharge the battery. Find out what made the battery run down in the first place