What are the symptoms of a faulty car crankshaft sensor?

1 Answers
CameronLynn
07/30/25 4:44am
When a car's crankshaft sensor fails, it may exhibit the following symptoms: 1. Minor deviations can cause the car to lose power and struggle to accelerate when going uphill; 2. The engine may have no idle speed, or the engine may shake severely at idle, with the exhaust pipe making popping sounds when accelerating, occasionally accompanied by these popping sounds, and the engine may stall when accelerating; 3. Severe deviations can prevent the engine from starting. In some car models, you may hear a knocking sound inside the engine when cranking, which is the sound of the piston hitting the valve. Advanced cars typically do not experience this issue. The function of the crankshaft position sensor is to determine the position of the crankshaft, specifically its rotation angle. It usually works in conjunction with the camshaft position sensor to determine the basic ignition timing.
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