C 2500 Suburban 2WD V8-454 7.4L VIN J SFI (1998)
Crankshaft Position Sensor: Service and Repair
Crankshaft Position Sensor Replacement
IMPORTANT: The CKP System System Variation Learning Procedure will need to be performed whenever the Crankshaft Position (CKP) sensor is
removed or replaced. Refer to CKP System Variation Learn Procedure.
REMOVAL PROCEDURE
1. Remove the electrical connector.
2. Remove the sensor hold down bolt.
3. Remove the sensor from the timing cover.
NOTE: When installing or removing a crankshaft position (CKP) sensor make sure the sensor is fully seated and held stationary in the front cover
before torquing the hold down bolt into the front cover. A sensor which is not seated may result in erratic operation and lead to the setting of false
codes.