The crankshaft sensor is responsible for sending a signal to the PCM (powertrain control module) it tells the computer what cylinder to fire at the coresponding time, it lines up with whats called a trigger wheel on the crankshaft as the crankshaft spins there are small notches cut into the trigger wheel when 1 of the notches lines up with the crankshaft sensor a magnetic field forms between the trigger whell and the sensor and the computer charges the coil for that corresponding cylinder, once the magnetic field dissappears when the notch passes by the sensor the computer fires the spark plug for that corresponding cylinder if you have a bad crankshaft position sensor you will more then likely have a stalling condition due to weak spark or if the sensor is totally gone your engine will just crank and not start due to the spark plugs not having any spark being delivered to them......
It senses the position of the crankshaft, piston location in the stroke, to tell the computer when it should fire a cylinder to obtain maximum compression so the engine rums smoothly and doesn't damage itself. If your crank position sensor is malfunctioning your probably seeing an engine fault light and it is possible it is running roughly. This can cause severe damage to the motor if you continue to use the vehicle.
SOURCE: i put on new timing belt and crankshaft belt and it will not star
change it out and find out if its the sensor or nor if you get fire to the plugs its not the sensor if you dont get fire then it probaably is
SOURCE: crankshaft sensor
you can get them at napa car parts for around 105.00 plus tax i did a search for you.....shia
SOURCE: 2004 Hyundai Santa Fe 3.5L V6 What all do I
Sensor should be on front of engine near timing belt. Remove mounting bolt and connector and replace. Clearance between sensor and sensor wheel, should be between .020-.059 inches when re-installed.
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