GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1996 🢒 GMC G Van 🢒 Engine 🢒 Engine Exhaust 🢒 Exhaust System Inspection

Inspection
  1. Inspect the following components for cracked joints, broken welds, and corrosion damage, which could permit exhaust fumes to seep into the rear compartment or passenger compartment:
    2. • Inspect the exhaust pipes.
    • Inspect the exhaust seals.
    • Inspect the catalytic converters.
    • Inspect the mufflers.
    • Inspect the tailpipes.
  2. Inspect the exhaust system, including the heat shields. The exhaust system must be free from the following conditions:
    3. • Leaks
    • Binding
    • Grounding
    • Excessive Vibration
  3. The following conditions usually cause conditions such as leaks, binding, grounding and excessive vibration:
    4. • Loose or damaged flange bolts.
    • Loose or damaged exhaust seals.
    • Loose or damaged heat shields.
    • Loose or damaged brackets.
    • Loose or damaged pipes.
  4. Align and replace misaligned or damaged components, as necessary.