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

Front Pipe

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REMOVAL & INSTALLATION



Pipe Without Catalytic Converter

See Figure 1

  1. Before removing any component of the exhaust system, always squirt a liquid rust dissolving agent onto the fasteners for ease of removal..
  2.  
  3. Raise and support the front of the vehicle on jackstands.
  4.  
  5. Remove the exhaust pipe-to-manifold nuts.
  6.  
  7. Support the catalytic converter, then disconnect the pipe from the converter. Remove the pipe.
  8.  
  9. Remove the exhaust gaskets.
  10.  

To install:
  1. Be sure to use all new gaskets when required. Assemble the system, check the clearance and tighten the bolts to about 15-30 ft. lbs. (20-41 Nm).
  2.  



Click image to see an enlarged view

Fig. Fig. 1: Front exhaust pipe connection common on vehicles with the catalytic converter not included

  1. All clamps should be tightened to about 18-25 ft. lbs. (24-34 Nm). Do overtighten the clamps. If pipes become dented they can leak.
  2.  

Pipe With Catalytic Converter
  1. Before removing any component of the exhaust system, always squirt a liquid rust dissolving agent onto the fasteners for ease of removal.
  2.  
  3. Raise and support the vehicle.
  4.  
  5. On some vehicles you will need to remove the brace from the transaxle.
  6.  
  7. Remove the exhaust pipe nuts from the manifold.
  8.  
  9. Support the catalytic converter pipe bolts from the rear of the converter.
  10.  
  11. Lower the catalytic converter/front pipe assembly from the vehicle.
  12.  

To install:
  1. Be sure to use all new gaskets when required.
  2.  
  3. Attach the new catalytic converter/front pipe assembly to the vehicle. Tighten the pipe to manifold nuts to 20-40 ft. lbs. (27-55 Nm).
  4.  
  5. Attach the bolts at the rear of the catalytic converter/front pipe. Tighten them to 30-35 ft. lbs. (41-47 Nm).
  6.  
  7. Connect the brace at the transaxle if removed.
  8.  
  9. Lower the vehicle.
  10.  

 
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