Question about 1994 Buick Regal Gran Sport

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Crankshaft Position Sensor and Camshaft Position Sensor

I need some step-by-step instructions on how to change the crankshaft position sensor and the camshaft position sensor on my 1994 Buick Regal Gran Sport 3.8L. Also, do I need any "special" tools?

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  • csrmem Jun 02, 2009

    Thanks for the info. Would a Haynes Manual help with this repair?

  • Anonymous Mar 15, 2014

    is it possible to change the crankshaft sensor without the special tool

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REMOVE OR DISCONNECT

  1. Serpentine belt from the crankshaft pulley.
  2. Raise the vehicle on a hoist.
  3. Right front tire and wheel assembly.
  4. Right inner fender access cover.
  5. Using a 28 mm socket, remove the crankshaft harmonic balancer retaining bolt.
  6. Crankshaft harmonic balancer using tool J 38192 or equivalent.
  7. Sensor electrical connector.
  8. Foreign object deflector.
  9. Sensor and pedestal from block face.
  10. Sensor from pedestal.
INSTALL OR CONNECT:

  1. Loosely install the crankshaft sensor on the pedestal.
  2. Position the sensor with pedestal attached on special Tool J 37089.
  3. Position the special tool on the crankshaft.
  4. Bolts to hold the pedestal to the block face, torque to 20-40 Nm (14-28 lb.ft).
  5. Torque the pedestal pinch bolt to 3-4 Nm (38-40 lb.in).
  6. Remove special tool J 37089.
  7. Place the special tool 37089 on the harmonic balancer and turn. If any vane of the harmonic balancer touches the tool, replace the balancer assembly.
  8. Balancer on the crankshaft.
    • Apply thread sealer (GM 1052080) or equivalent to the threads of the balancer bolt.
  1. Torque the crankshaft bolt to 140 Nm + 56°(104 lb.ft + 56°).
  2. Foreign object deflector.
  3. Electrical connector.
  4. Inner fender shield.
  5. Tire and wheel assembly, torque to 140 Nm (104 lb.ft).
  6. Lower the vehicle.
  7. Serpentine belt.

Posted on Jun 02, 2009

  • Ronnie Wilson Jun 11, 2009

    P L E A S E RATE ME as A FixYa if this Leads to the Correct Repair

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