The C6 Corvette was just removed from winter storage and was about to receive a complete service. The engine roared to life and the instrument panel reflected a systems check. Bulbs were illuminated and would time out, indicating that systems or components were functioning as normal. Moments later, a warning lamp resembling an occupant holding […]
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The vehicle received a full service including an oil and filter change. The system was leak checked and the engine had good oil pressure. Two days later, the customer calls reporting a loss of oil pressure symptom. Mechanic A says…a defective oil filter is the cause of the loss of oil pressure. Mechanic B says…a stuck […]
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When diagnosing engine performance complaints such as misfire symptoms, be advised that several systems and components can contribute to those symptoms. When considering single or multiple misfire codes, some checks may seem farfetched but trust me if not all are considered the symptoms can elude the most experienced technician, resulting in a misdiagnosis. When this […]
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Vehicles today incorporate a maze of electronic components that must be considered when troubleshooting a performance related symptom. A vast arsenal of test equipment is necessary to communicate with the electronic systems and components. Systems are so connected that it is difficult for the technician to distinguish between a mechanical, electrical, fuel or emission related […]
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Turbocharged engines are becoming commonplace as the vehicle manufacturers are utilizing smaller displacement engines fitted with turbochargers. Turbochargers and direct fuel injection can make a smaller displacement engine behave like a larger displacement engine, while accomplishing better fuel economy. With this technology comes some challenges, especially in the area of required maintenance. Failure to provide […]
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Failure to provide timely maintenance on a turbo-charged diesel engine can result in some expensive repairs, especially if it involves replacing a turbocharger or engine. The inexperienced may not realize how important some of the basic services are when servicing these applications. The turbo-diesel engines require a greater volume of air compared to a normal […]
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A major part of the diagnostic process is identifying an issue from a normal characteristic. Following are some examples of customer complaints that could be mistaken as a problem when they may be a normal occurrence for the application. DIESEL ENGINES AND NOISE-RELATED SYMPTOMS Customer complaints of ticking, clicking, or cycling noises on 2017–2022 GM […]
Read MoreComplaints of damaged air boxes, hold-down clamps and difficulty making an air filter installation have been reported on 2017–2019 Ford trucks equipped with the 6.7L Turbo-Diesel engine.
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Timely vehicle maintenance makes good business sense, especially when compared to costly engine repairs or an engine replacement. The extended service intervals have created a major concern for the old school generation, and especially technicians that have serviced vehicles for thirty-plus years. Our early driving and maintenance experience encompassed less fuel…
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