Question about 2000 Jeep Grand Cherokee
The Crankshaft Position Sensor (CKP) is mounted to the transmission bellhousing at the left/rear side of the engine block. Engine speed and crankshaft position are provided through the crankshaft position sensor. The sensor generates pulses that are the input sent to the powertrain control module (PCM). The PCM interprets the sensor input to determine the crankshaft position. The PCM then uses this position, along with other inputs, to determine injector sequence and ignition timing. The sensor is a Hall effect device combined with an internal magnet. It is also sensitive to steel within a certain distance from it.
On 4.0L 6-cylinder engines, the flywheel/drive plate has 3 sets of four notches at its outer edge. The notches cause a pulse to be generated when they pass under the sensor. The pulses are the input to the PCM. For each engine revolution there are 3 sets of four pulses generated.
The trailing edge of the fourth notch, which causes the pulse, is four degrees before top dead center (TDC) of the corresponding piston. The engine will not operate if the PCM does not receive a crankshaft position sensor input.
This is a photo of the bell housing on the transmission:
Posted on Oct 07, 2009
The crank position sensor is located on the transmission bell housing (right side looking from the front)
Posted on Oct 07, 2009
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Posted on Jan 02, 2017
Sorry brother, it is in the gas tank with the pump. they used filters that are suppose to be good for the life of the vechicle. you can see the plug if you lift up your spare. hope you dont HAVE TO go in there.
Posted on Mar 23, 2009
SOURCE: CANT FIND CRANK SENSOR
The sensor is mounted in a fixed position in the engine block. The tip of the sensor protrudes into the crankcase at a distance of 0.05 plus or minus 0.02 inch from the crankshaft.
Posted on Apr 28, 2009
If you still have a cap rotor and ignition wires, it's inside the distributor. If not, it is the part where the distributor used to be (center rear of the engine behind the intake manifold)
Posted on Feb 19, 2010
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