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Eric
Eric, Automotive Repair Shop Manager
Category: Pontiac
Satisfied Customers: 29981
Experience:  20+ yrs. experience as repair shop manager and technician.
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Replace the crankshaft position sensor on a 2000 grand prix 3800

Customer Question

how do you replace the crankshaft position sensor on a 2000 grand prix 3800
Submitted: 6 years ago.
Category: Pontiac
Expert:  Eric replied 6 years ago.

Hi,

 

Directions are below:

 

  1. Disconnect the negative battery cable.
  2. Remove the serpentine belt(s) from the crankshaft pulley. Please see .
  3. Raise and safely support the vehicle.
  4. Remove the right front tire assembly. Remove the right inner fender access cover.
  5. A flywheel holding device such as GM's J 37096 is required to keep the crankshaft from turning as the crankshaft balancer is being removed. Install this holding tool or its equivalent. Please see for more information.
  6. Using a 28mm socket, remove the crankshaft harmonic balancer retaining bolt. Using special tool J 38197 or equivalent balancer removal tools, drawn the balancer from the end of the crankshaft. Please see for more information.
  7. There is a roughly circular aluminum shield that protects the crankshaft position sensor; remove this shield. Use care not to damage it. Do not pry to remove.
  8. Detach the electrical connector from the crankshaft position sensor, remove the attaching bolts and separate the sensor from the engine block face.




Click image to see an enlarged view

Fig. Dual Crankshaft Position (CKP) sensor removal-3.8L Engines

To install:

  1. Clean all parts well. Position the crankshaft sensor to the block face and tighten the bolts to 14-28 ft. lbs. (20-40 Nm).
  2. Install the crankshaft position sensor shield. Verify that the electrical connector is secure.
  3. Install the crankshaft balancer. Please see .
  4. Torque the crankshaft balancer center bolt to 110 ft. lbs. (150 Nm), plus an additional 76 degrees.
  5. Install the inner fender access cover and the right front tire assembly. Wheel nut torque is 104 ft. lbs. (140 Nm).
  6. Lower the vehicle.
  7. Install the serpentine belt(s), as outlined in .
  8. Connect the negative battery cable

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