GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 742176  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the right wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
  3. Disconnect the crankshaft position (CKP) sensor electrical connector.
  4. Remove the CKP sensor bolt (2).
  5. Remove the CKP sensor (1).
  6. If necessary, remove the CKP sensor spacer bolts.
  7. If necessary, remove the CKP sensor spacer.

Installation Procedure


    Object Number: 742176  Size: SH
  1. If necessary, lubricate a NEW CKP spacer O-ring with clean engine oil.
  2. If necessary, install the NEW O-ring to the CKP sensor spacer.
  3. Important: The crankshaft position sensor spacers are machined with different timing positions. However, if the crankshaft position sensor spacer requires replacement, replace with a grade "B" spacer.

  4. If necessary, install the CKP sensor spacer.
  5. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  6. If necessary, install the CKP sensor spacer bolts.
  7. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  8. Lubricate a NEW CKP sensor O-ring with clean engine oil.
  9. Install the NEW O-ring to the CKP sensor (1).
  10. Install the CKP sensor bolt (2).
  11. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  12. Connect the CKP sensor electrical connector.
  13. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  14. Install the right wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.