GM Grand Am/Achieva/Calais/Skylark/Somerset 1985-98

DIS Assembly

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REMOVAL & INSTALLATION



See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: Exploded view of the DIS assembly and related components-1987-91 2.5L engine

  1. Disconnect the negative battery cable.
  2.  
  3. Detach the DIS electrical connectors.
  4.  
  5. Tag and disconnect the spark plug leads from the coils.
  6.  
  7. Remove the DIS assembly retaining bolts, then remove the unit from the engine.
  8.  

Before installing the DIS assembly, check the crankshaft sensor O-ring for damage or leakage and replace if necessary. Lubricate the O-ring with engine oil before installing.

To install:
  1. Fit the DIS assembly into the engine, then secure using the retaining bolts. Tighten the bolts to 20 ft. lbs. (27 Nm).
  2.  
  3. Connect the spark plug wires to the coils as tagged during removal.
  4.  
  5. Attach the DIS electrical connectors.
  6.  
  7. Connect the negative battery cable.
  8.  

 
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