GM Lumina/Grand Prix/Cutlass Supreme/Regal 1988-1996

Front Exhaust Pipe

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REMOVAL & INSTALLATION



See Figures 1, 2 and 3

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Fig. Fig. 1: When cutting an exhaust pipe...



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Fig. Fig. 2: ... make sure to cut as close to the weld(s) as possible



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Fig. Fig. 3: Front exhaust pipe-to-manifold connection-2.3L engine shown

  1. Suitably support the catalytic converter with a floor jack and a piece of wood.
  2.  

The cuts must be made as close to the weld(s) as possible to ensure adequate overlap for clamping.

  1. Cut the front exhaust pipe at the converter.
  2.  
  3. Remove the bolts, spring and exhaust pipe from the manifold.
  4.  
  5. Remove the exhaust manifold seal from the manifold.
  6.  

To install:
  1. Install an approved exhaust system clamp onto the converter, do not tighten the clamp.
  2.  
  3. Install the replacement pipe by sliding the pipe into the converter opening.
  4.  
  5. Install the seal, pipe springs and bolt to the manifold. Tighten the bolts to 24 ft. lbs. (32 Nm) and the clamp nuts to 37 ft. lbs. (50 Nm).
  6.  
  7. Remove the converter support.
  8.  
  9. Start the engine and check the entire system carefully for leaks.
  10.  

 
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