The CKP sensor is a magnetic transducer mounted on the engine block or timing cover and is adjacent to a pulse wheel located on the crankshaft. By monitoring the crankshaft mounted pulse wheel, the CKP is the primary sensor for ignition information to the PCM. The trigger wheel has a total of 35 teeth spaced 10 degrees apart with one empty space for a missing tooth. By monitoring the trigger wheel, the CKP indicates crankshaft position and speed information to the PCM. By monitoring the missing tooth, the PCM uses the CKP signal to synchronize the ignition system and track the rotation of the crankshaft.
Removal & Installation
- Before servicing the vehicle, refer to the Precautions section.
- With the vehicle in NEUTRAL, position it on a hoist.
- Disconnect the battery ground cable.
- Disconnect the crankshaft position (CKP) sensor electrical connector.
Remove the bolt and the CKP sensor. Inspect and install a new O-ring seal as necessary.
NOTELubricate the O-ring seal with clean engine oil.
- To install, reverse the removal procedure.
Before servicing the vehicle, refer to the Precautions section.
WARNINGUse only a high-impedance multimeter, otherwise damage to the PCM and/or sensors can result.
- Visually check the timing cover, CKP sensor and external trigger wheel (outside the timing cover) for obvious physical damage.
- With the key OFF , disconnect the CKP sensor harness and measure the resistance of the CKP sensor. Standard value is 250-1000 ohms.
- If the resistance is outside the limits given, replace the CKP sensor.