Crankshaft Position Sensor: Installation

2004 Oldsmobile Bravada AWDSECTION Installation
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue and 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure the CKP sensor bore is completely free of any foreign material, such as old "O" ring, dirt, burrs, etc. Ensure that the flange on the CKP sensor bore is not damaged. Clean all mounting surfaces before reinstalling any components. Lubricate the CKP sensor "O" ring with clean engine oil.
  2. Install CKP sensor. Tighten CKP sensor bolt to specification. See TORQUE SPECIFICATIONS . Ensure the CKP sensor mounting flange is contacting the engine block. Connect CKP sensor connector. Install starter. Tighten starter bolts to specification. Reconnect starter wiring. Lower vehicle.
  3. Reconnect negative battery cable. On Aurora, install the rear seat cushion. On all models, perform CRANKSHAFT POSITION (CKP) SENSOR VARIATION LEARN PROCEDURE. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.
Fig 1: Locating Crankshaft Position Sensor (3.5L)
G00132261Courtesy of GENERAL MOTORS CORP.


  1. Lubricate CKP sensor "O" ring with clean engine oil. Install the CKP sensor and the retaining bolt. Tighten the retaining bolt to specification. See TORQUE SPECIFICATIONS . Install the CKP sensor electrical connector.
  2. Using NEW "O" rings, install the oil filter adaptor. Tighten oil filter adaptor bolts to specification. Lower the vehicle. Operate the engine and inspect CKP sensor for engine oil leaks. Perform CRANKSHAFT POSITION (CKP) SENSOR VARIATION LEARN PROCEDURE. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.
Fig 1: Locating CKP Sensors, Engine Oil Pressure Sensor & Engine Oil Level Switch (4.0L)
G00053843Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

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.