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Would a bad crank sensor on jeep cause it to jerk while driving it?

Yes, a bad crank sensor can cause a Jeep to jerk while driving. The crankshaft position sensor is a critical component of the engine's ignition system. It monitors the position of the crankshaft and sends a signal to the engine's computer, which then determines when to fire the spark plugs. If the crank sensor is faulty, it can cause the engine to run rough or stall, and it can also cause the vehicle to jerk while driving.