Do you have this feeling that something’s just not right with your car, especially with the way it is running? It may be a good time for drivability diagnostics. Drivability refers to anything having do with how your vehicle is performing while on the road. From the fuel system to affected components and other systems like the Powertrain, ignition, distributor, exhaust system, brakes, tires, suspension etc… the list is endless. With the proper diagnostics, the problems are zeroed in on and solved before they become a major issue.
One of the main areas this type of testing looks at is the powertrain Control Module (PCM). It is the Engines control System, the on onboard computer in every vehicle that acts as the brain of the engine. A PCM or circuit system failure can be the cause of many problems in your car including the transmission. If the vehicle undergoes a drivability diagnostics test, problems will be sorted out within the Powertrain operational parameters.
In many situations, the more common problems surface because we neglect or are unaware of proper care of our car. Electronic systems are one example, emissions are another. They can be a delicate pieces of equipment. Frequent or scheduled drivability diagnostics checks should be performed. What are some of the commonly occurring problems you may see in a vehicle?
Intermittent stalling of engines… some of the known causes include a worsening Idle Speed Control (ISC) System, ignition loss, low fuel pressure, EGR or vacuum leaks and many more. The Idle speed of every engine is manipulated through the amount of air that is permitted to bypass throttles using the idle bypass circuit which is located within the throttle body. The Powertrain Control Module then monitors the idle speed, and it utilizes a solenoid,a small electric motor to position a valve that manipulates the airflow through air bypass circuits. If a sensor in this system fails, it could be the cause of your problems. A diagnostics check could find the issue and repairs can be made.
Aside from that, the analysis will also seek out any problems that hamper your vehicle engine’s performance, such as;
-Hot and cold starting procedures.
-Efficient throttle responses.
-Effective power delivery.
Many complaints directed to drivability issues may be more serious than the average concerns. In these situations, such issues are verifiable and better addressed via a more in-depth scanning and diagnosis by qualified technicians with the latest test computers and diagnostic equipment. Modern vehicles have their own special diagnostic requirements. Skilled technicians updated with the current procedures, techniques and new technologies are the most qualified to conduct such diagnostics. JD’s Auto Repair, High Performance and Restoration Automotive technicians ensure that your car is fixed right the first time.