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 MANUALSJEEP2001WRANGLER L4-2.5L VIN PREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCRANKSHAFT POSITION SENSORSERVICE AND REPAIR
2001 Jeep Wrangler L4-2.5L VIN P
Crankshaft Position Sensor: Service and Repair
2001 Jeep Wrangler L4-2.5L VIN PSECTION Service and Repair
REMOVAL
The crankshaft position (CKP) sensor is mounted to the transmission bellhousing at the left/rear side of the engine block.
The sensor may be mounted to the transmission with one of the following three different configurations:
- with one bolt. If sensor is equipped with one mounting bolt, it is adjustable.
- with two nuts.
- with two bolts.
1. Near right-rear side of engine, disconnect sensor pigtail harness (electrical connector) from main electrical harness.
2. Depending upon application, remove either sensor mounting bolt(s) or nuts.
3. Remove sensor from engine.
INSTALLATION
Sensor With 2-Bolt Mounting:
1. Install sensor flush against opening in transmission housing.
2. Install and tighten two sensor mounting bolts to 12 Nm (9 ft. lbs.) torque. The two sensor mounting bolts are specially machined to correctly space unit to flywheel. Do not attempt to install any other bolts.
Sensor With 2-Nut Mounting:
3. Install and tighten two sensor mounting nuts to 12 Nm (9 ft. lbs.) torque.
Sensor With One-Bolt Mounting:
New replacement sensors will be equipped with a paper spacer glued to bottom of sensor. If installing (returning) a used sensor to vehicle, a new paper spacer must be installed to bottom of sensor. This spacer will be ground off the first time engine is started. If spacer is not used, sensor will be broken the first time engine is started.
4. New Sensors: Be sure paper spacer is installed to bottom of sensor. If not, obtain spacer PN05252229.
5. Used Sensors: Clean bottom of sensor and install spacer PN05252229.
6. Install sensor into transmission bellhousing hole.
7. Push sensor against flywheel/drive plate. With sensor pushed against flywheel/drive plate, tighten mounting bolt to 7 Nm (60 in. lbs.) torque.
8. Connect sensor pigtail harness electrical connector to main wiring harness.
The crankshaft position (CKP) sensor is mounted to the transmission bellhousing at the left/rear side of the engine block.
The sensor may be mounted to the transmission with one of the following three different configurations:
Fig.17 Crankshaft Position Sensor-One-Bolt Mounting:
- with one bolt. If sensor is equipped with one mounting bolt, it is adjustable.
Fig.18 Crankshaft Position Sensor-Two-Nut Mounting:
- with two nuts.
Fig.19 Crankshaft Position Sensor-Two-Bolt Mounting:
- with two bolts.
1. Near right-rear side of engine, disconnect sensor pigtail harness (electrical connector) from main electrical harness.
2. Depending upon application, remove either sensor mounting bolt(s) or nuts.
3. Remove sensor from engine.
INSTALLATION
Sensor With 2-Bolt Mounting:
1. Install sensor flush against opening in transmission housing.
2. Install and tighten two sensor mounting bolts to 12 Nm (9 ft. lbs.) torque. The two sensor mounting bolts are specially machined to correctly space unit to flywheel. Do not attempt to install any other bolts.
Sensor With 2-Nut Mounting:
3. Install and tighten two sensor mounting nuts to 12 Nm (9 ft. lbs.) torque.
Sensor With One-Bolt Mounting:
New replacement sensors will be equipped with a paper spacer glued to bottom of sensor. If installing (returning) a used sensor to vehicle, a new paper spacer must be installed to bottom of sensor. This spacer will be ground off the first time engine is started. If spacer is not used, sensor will be broken the first time engine is started.
4. New Sensors: Be sure paper spacer is installed to bottom of sensor. If not, obtain spacer PN05252229.
5. Used Sensors: Clean bottom of sensor and install spacer PN05252229.
6. Install sensor into transmission bellhousing hole.
7. Push sensor against flywheel/drive plate. With sensor pushed against flywheel/drive plate, tighten mounting bolt to 7 Nm (60 in. lbs.) torque.
8. Connect sensor pigtail harness electrical connector to main wiring harness.
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.