Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1998LUMINA V6-3.8L VIN KREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCRANKSHAFT POSITION SENSORSERVICE AND REPAIRCRANKSHAFT POSITION SENSOR REPLACEMENT
1998 Chevrolet Lumina V6-3.8L VIN K
Crankshaft Position Sensor Replacement
1998 Chevrolet Lumina V6-3.8L VIN KSECTION Crankshaft Position Sensor Replacement
REMOVAL PROCEDURE
Tools Required
^ J 36660 Torque/Angle Meter.
^ J 37096 Flywheel Holding Tool.
^ J 38197 Balancer Remover.
1. Disconnect the negative battery cable.
2. Remove the serpentine belt(s) from the crankshaft pulley.
3. Raise the vehicle on a hoist.
4. Remove the right front wheel and tire assembly.
5. Remove the right inner fender access cover.
6. Hold the flywheel with J 37096 Flywheel Holding Tool.
7. Using 28 mm socket, remove the crankshaft harmonic balancer retaining bolt.
8. Remove the crankshaft harmonic balancer using special tool J 38197 Balancer Remover.
9. Remove the crankshaft position sensor shield (1).
CAUTION: Do Not use a pry bar.
10. Disconnect the sensor electrical connector.
11. Remove the attaching bolts from the crankshaft position sensor.
12. Remove the crankshaft position sensor from block face.
INSTALLATION PROCEDURE
1. Position the crankshaft position (CKP) sensor to the block.
2. Install the bolts to hold the CKP sensor to the block face.
Tighten
^ Bolts to 20-40 Nm (14-28 lb ft).
3. Install the crankshaft position sensor shield.
4. Connect the CKP sensor electrical connector.
5. Position the crankshaft harmonic balancer on the crankshaft.
6. Hold the flywheel with J 37096 Flywheel holding tool.
Tighten
^ Using J 36660 Torque/Angle Meter, tighten the harmonic balancer bolt to 150 Nm + 76 degrees ( 110 ft. lb. + 76 degrees).
7. Install the right inner fender access cover.
8. Install the right front wheel and tire assembly.
Tighten
^ Wheel lug nuts to 140 Nm (104 lb ft).
9. Lower the vehicle.
10. Install the serpentine belt(s).
11. Connect the negative battery cable.
12. Perform the Crankshaft Position System Variation Learn Procedure. Crankshaft Position System Variation Learn Procedure
Tools Required
^ J 36660 Torque/Angle Meter.
^ J 37096 Flywheel Holding Tool.
^ J 38197 Balancer Remover.
1. Disconnect the negative battery cable.
2. Remove the serpentine belt(s) from the crankshaft pulley.
3. Raise the vehicle on a hoist.
4. Remove the right front wheel and tire assembly.
5. Remove the right inner fender access cover.
6. Hold the flywheel with J 37096 Flywheel Holding Tool.
7. Using 28 mm socket, remove the crankshaft harmonic balancer retaining bolt.
8. Remove the crankshaft harmonic balancer using special tool J 38197 Balancer Remover.
9. Remove the crankshaft position sensor shield (1).
CAUTION: Do Not use a pry bar.
10. Disconnect the sensor electrical connector.
Crankshaft Position Sensor:
11. Remove the attaching bolts from the crankshaft position sensor.
12. Remove the crankshaft position sensor from block face.
INSTALLATION PROCEDURE
1. Position the crankshaft position (CKP) sensor to the block.
2. Install the bolts to hold the CKP sensor to the block face.
Tighten
^ Bolts to 20-40 Nm (14-28 lb ft).
3. Install the crankshaft position sensor shield.
4. Connect the CKP sensor electrical connector.
5. Position the crankshaft harmonic balancer on the crankshaft.
6. Hold the flywheel with J 37096 Flywheel holding tool.
Tighten
^ Using J 36660 Torque/Angle Meter, tighten the harmonic balancer bolt to 150 Nm + 76 degrees ( 110 ft. lb. + 76 degrees).
7. Install the right inner fender access cover.
8. Install the right front wheel and tire assembly.
Tighten
^ Wheel lug nuts to 140 Nm (104 lb ft).
9. Lower the vehicle.
10. Install the serpentine belt(s).
11. Connect the negative battery cable.
12. Perform the Crankshaft Position System Variation Learn Procedure. Crankshaft Position System Variation Learn Procedure
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.