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What are the reasons for a car motor cranking but failing to start the engine?

1 Answers

LolaFitz

07/24/25 6:51pm

Car motor cranking but failing to start the engine can be caused by: 1. The fork of a mechanical forced starter has come off its track and cannot push the starter's drive pinion; 2. Improper adjustment of the motor stroke, preventing engagement; 3. The solenoid plunger stroke of an electromagnetic control starter is too short; 4. Short circuit or open circuit in the auxiliary coil of a moving-armature starter, preventing the armature from reaching the working position; 5. Slippage in the starter's one-way clutch; 6. Severe wear on the engine's flywheel teeth. The function of a car motor is to use energized coils that rotate under magnetic force to drive the starter rotor, with the rotor's pinion gear turning the engine flywheel, thereby rotating the crankshaft to start the engine.

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