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Home >> Buick >> 2016 >> Cascada Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System >> Repair Instructions >> Exhaust Pipe Replacement >> Installation Procedure
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Installation Procedure

  1. In case of reuse of the exhaust parts, check the exhaust pipes at the separating sets for the following conditions:
    • Roundness of the exhaust pipe, any deformation in the range of the double-clamp must be eliminated.
    • Burrs inside and outside the exhaust pipe at the cutting edge, use a file to eliminate.
    • Rust at the exhaust pipe outside, use a sandpaper to eliminate.
  2. Fig 1: Exhaust Pipe
    GM2882946Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A second technician is required.

  3. Install the exhaust pipe (4) with a NEW gasket (6) to the exhaust particulate filter.
  4. Support the exhaust pipe.
  5. CAUTION:

    Refer to Fastener Caution .

  6. Install the 2 nuts (5) and tighten to 22 N.m (16 lb ft).
  7. Install the exhaust pipe clamp (3) and tighten loosely.
  8. Hang in the exhaust hanger insulator (1).
  9. Position the exhaust pipe (4) and the exhaust rear muffler (2).
  10. Tighten the exhaust pipe clamp (3) to 30 N.m (22 lb ft).
  11. Install the underbody brace - rear V-rod. Refer to Underbody Brace Replacement - Rear V-Rod .
  12. Fig 2: Exhaust Pipe
    GM3462374Courtesy of GENERAL MOTORS COMPANY
  13. There must be a distance (a) between the underbody brace - rear V-rod (2) and exhaust pipe (1) of 16 mm (0.63 in).
  14. If distance (a) between underbody - rear V-rod (2) and exhaust pipe (1) is under 16 mm (0.63 in) align the exhaust pipe once again by loosening the exhaust pipe nuts.
  15. Lower and unsupport the vehicle.