Question 141Motor Plants - QMED

The correct answer is A) turbocharger malfunction or failure. A sudden power loss from a turbocharged and aftercooled diesel engine is an indication of a turbocharger malfunction or failure. The turbocharger is responsible for compressing the intake air, which increases the engine's power output. If the turbocharger fails, the engine will lose its ability to produce the necessary boost, leading to a sudden loss of power. The other answer choices are incorrect because they do not directly relate to a sudden power loss in a turbocharged and aftercooled diesel engine. A crankcase exhauster overload (B) or an overload on the intercooler (C) would not cause a sudden power loss. An obstruction in the engine cylinders (D) could lead to a power loss, but it would not be a sudden loss specifically related to the turbocharger.