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 MANUALSBUICK1999LESABRE V6-3.8L VIN KREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCRANKSHAFT POSITION SENSORSERVICE AND REPAIR
1999 Buick LeSabre V6-3.8L VIN K
Crankshaft Position Sensor: Service and Repair
1999 Buick LeSabre V6-3.8L VIN KSECTION Service and Repair
REMOVAL PROCEDURE
TOOLS REQUIRED
^ J 36660 Torque/Angle Meter
^ J 37096 Flywheel Holding Tool
^ J 38197 Balancer Remover
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Remove the serpentine belt(s) from the crankshaft pulley.
CAUTION: Refer to Hoist Caution in Service Precautions.
3. Raise the vehicle on a hoist.
4. Remove the right front wheel and tire assembly.
5. Remove the right inner fender splash shield.
6. Remove the flywheel inspection cover.
7. Hold the flywheel with J 37096 Flywheel Holding Tool.
8. Using 28 mm socket, remove the crankshaft harmonic balancer retaining bolt.
9. Remove the crankshaft harmonic balancer using special tool J 38197 Balancer Remover.
10. Disconnect the sensor electrical connector (1).
11. Remove the crankshaft position sensor shield. (Do Not use a pry bar).
12. Remove the 2 attaching bolts from the crankshaft position sensor (3).
13. Remove the Crankshaft Position (CKP) sensor from block face.
INSTALLATION PROCEDURE
1. Position the crankshaft position (CKP) sensor to the block.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the bolts to hold the CKP sensor to the block face.
Tighten
Tighten the bolts to 30 N.m (22 lb ft).
3. Install the crankshaft position sensor shield.
4. Connect the CKP sensor electrical connector (1).
5. Position the crankshaft harmonic balancer on the crankshaft.
6. Hold the flywheel with J 37096 Flywheel Holding Tool.
Tighten
Tighten the harmonic balancer bolt to 150 N.m +76° (110 lb ft +76°).
7. Remove the right inner fender splash shield.
8. Install the right front wheel and tire assembly.
Tighten
Tighten the wheel nuts to 140 N.m (104 lb ft).
9. Lower the vehicle.
10. Install the serpentine belt(s) from the crankshaft pulley.
11. Connect the negative battery cable.
12. Perform the Crankshaft Position System Variation Learn Procedure. Refer to CKP System System Variation Learn Procedure. Testing and Inspection
TOOLS REQUIRED
^ J 36660 Torque/Angle Meter
^ J 37096 Flywheel Holding Tool
^ J 38197 Balancer Remover
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Remove the serpentine belt(s) from the crankshaft pulley.
CAUTION: Refer to Hoist Caution in Service Precautions.
3. Raise the vehicle on a hoist.
4. Remove the right front wheel and tire assembly.
5. Remove the right inner fender splash shield.
6. Remove the flywheel inspection cover.
7. Hold the flywheel with J 37096 Flywheel Holding Tool.
8. Using 28 mm socket, remove the crankshaft harmonic balancer retaining bolt.
9. Remove the crankshaft harmonic balancer using special tool J 38197 Balancer Remover.
10. Disconnect the sensor electrical connector (1).
11. Remove the crankshaft position sensor shield. (Do Not use a pry bar).
12. Remove the 2 attaching bolts from the crankshaft position sensor (3).
13. Remove the Crankshaft Position (CKP) sensor from block face.
INSTALLATION PROCEDURE
1. Position the crankshaft position (CKP) sensor to the block.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the bolts to hold the CKP sensor to the block face.
Tighten
Tighten the bolts to 30 N.m (22 lb ft).
3. Install the crankshaft position sensor shield.
4. Connect the CKP sensor electrical connector (1).
5. Position the crankshaft harmonic balancer on the crankshaft.
6. Hold the flywheel with J 37096 Flywheel Holding Tool.
Tighten
Tighten the harmonic balancer bolt to 150 N.m +76° (110 lb ft +76°).
7. Remove the right inner fender splash shield.
8. Install the right front wheel and tire assembly.
Tighten
Tighten the wheel nuts to 140 N.m (104 lb ft).
9. Lower the vehicle.
10. Install the serpentine belt(s) from the crankshaft pulley.
11. Connect the negative battery cable.
12. Perform the Crankshaft Position System Variation Learn Procedure. Refer to CKP System System Variation Learn Procedure. Testing and Inspection
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.