GM Celebrity/Century/Ciera/6000 1982-1996 Repair Guide

C

Print

The 3.3L engine is the only one with the C 3 I system.

REMOVAL and INSTALLATION

C3I Module

See Figure 1

  1. Disconnect the negative battery cable.
  2.  
  3. Unplug the 14-way connector at the ignition module.
  4.  



Click image to see an enlarged view

Fig. Fig. 1: Distributorless C 3 I coils and module system - 3.3L engine

  1. Tag and disconnect the spark plug wires at the coil assembly.
  2.  
  3. Remove the nuts and washers securing the C 3 I module assembly to the bracket.
  4.  
  5. Remove the 6 bolts attaching the coil assemblies to the ignition module.
  6.  

To install:
  1. Install the coil assemblies to the ignition module and install the 6 attaching bolts.
  2.  
  3. Install the nuts and washers attaching the assembly to the bracket.
  4.  
  5. Connect the spark plug wires.
  6.  
  7. Engage the 14-way connector to the module.
  8.  
  9. Connect the negative battery cable, then reset the clock, radio and any other accessories.
  10.  

Ignition Coil(s)
  1. Disconnect the negative battery cable.
  2.  
  3. Tag and disconnect the spark plug wires.
  4.  
  5. Remove ignition coil attaching bolts, then the ignition coil from the module.
  6.  

To install:
  1. Install the coil(s) and attaching bolts.
  2.  
  3. Connect the spark plug wires.
  4.  
  5. Connect the negative battery cable, then reset the clock, radio and any other accessories.
  6.  

Dual Crankshaft Sensor

See Figures 2, 3 and 4

  1. Disconnect battery negative cable.
  2.  
  3. Remove serpentine belt from crankshaft pulley.
  4.  
  5. Raise and safely support the vehicle.
  6.  
  7. Remove right front tire and wheel assembly, then the inner access cover.
  8.  
  9. Remove crankshaft harmonic balancer retaining bolt and crankshaft harmonic balancer.
  10.  



Click image to see an enlarged view

Fig. Fig. 2: Harmonic balancer with interrupter rings on C 3 I system

  1. Unplug the electrical connector from the sensor and remove the crankshaft sensor from the vehicle.
  2.  

To install:
  1. Loosely install the crankshaft sensor on the pedestal.
  2.  



Click image to see an enlarged view

Fig. Fig. 3: Dual crankshaft sensor - C 3 I system

  1. Position the sensor with the pedestal attached on special tool J-37089.
  2.  
  3. Position the tool on the crankshaft.
  4.  
  5. Install the bolts to hold the pedestal to the block face. Tighten to 14-28 ft. lbs. (20-40 Nm).
  6.  
  7. Tighten the pedestal pinch bolt to 30-35 inch lbs. (3-4 Nm).
  8.  
  9. Remove special tool J-37089.
  10.  
  11. Place special tool J-37089 on the harmonic balancer and turn. If any vane of the harmonic balancer touches the tool, replace the balancer assembly.
  12.  

A clearance of 0.025 inch is required on either side of the interrupter ring. Be certain to obtain the correct clearance. Failure to do so will damage the sensor. A misadjusted sensor of bent interrupter ring could cause rubbing of the sensor, resulting in potential driveability problems, such as rough idle, poor performance, or a no start condition.

  1. Install the balancer on the crankshaft and install the crankshaft balancer bolt. Tighten to 200-239 ft. lbs. (270-325 Nm).
  2.  
  3. Install the inner fender shield.
  4.  
  5. Install the tire and wheel assembly. Tighten to 100 ft. lbs. (140 Nm).
  6.  
  7. Lower the vehicle.
  8.  
  9. Install the serpentine belt.
  10.  
  11. Connect the negative battery cable, then reset the clock, radio and any other accessories.
  12.  



Click image to see an enlarged view

Fig. Fig. 4: Distributorless C 3 I positioning tool J-37089 for installing dual crankshaft sensor.system - 3.3L engine

 
label.common.footer.alt.autozoneLogo