Field experience continues to reinforce two automotive service trends. First, today's high-tech vehicle systems cannot tolerate fundamental engine problems-especially those resulting from poor maintenance.
Second, the more sophisticated vehicle technology becomes-the more important proper maintenance, fuel quality and a mechanically sound engine also become.
Unfortunately, as cars become more sophisticated, motorists and technicians expect more from them.
Motorists wrongly assume any gasoline will suffice and that skipping a few service stops won't matter. Meanwhile, many technicians are distracted by the vehicle's sophistication. Anticipating high-tech problems, they overlook such obvious low-tech causes as a contaminated throttle assembly or carbon buildup in the engine.
This service section focuses on vital but often overlooked aspects of driveability diagnosis.