Monday, March 12, 2012

How to Test Crankshaft Position Sensor on Ford Windstar?

The details to test Crankshaft Position Sensor are as follows :------

Crankshaft Position Sensor
OPERATION
TESTING
Instructions are as follows :-----

Operation



image
Fig. Crankshaft position sensor mounting-3.0L engine


Click image to see an enlarged view
Fig. Crankshaft position sensor mounting-3.8L engine
The CKP sensor, located on the engine front cover near the crankshaft pulley, is used to determine crankshaft position and crankshaft rpm. The sensor is a magnetic reluctance type which senses the passing of teeth on a tone wheel because the teeth disrupt the magnetic field of the sensor. This disruption creates a voltage fluctuation, which is monitored by the PCM.

Testing





Click image to see an enlarged view
Fig. Crankshaft position sensor electrical schematic-3.0L engine
  1. Measure the voltage between the sensor CKP sensor terminals by backprobing the sensor connector.
  2. If the connector cannot be backprobed, fabricate or purchase a test harness. Sensor voltage should be more than 0.1 volt DC with the engine running and should vary with engine RPM.
  3. If voltage is not within specification, the sensor may be faulty.

This will help.
Thanks.

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