GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 Savana 🢒 Engine 🢒 Engine Exhaust 🢒 Exhaust System 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.