Step | Action | Value(s) | Yes | No | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Inspect the heat shield for contact with the exhaust pipes when cold, AND after a warm-up. Is the heat shield misaligned or loose? | -- | Go to Step 2 | Go to Step 3 | ||||||||
2 | Replace the heat shield only if necessary. Replace the heat shield rivets. Is there still exhaust noise? | -- | Go to Step 3 | System OK | ||||||||
3 | Inspect for faulty hangers or brackets. Are there any faulty hangers or brackets? | -- | ||||||||||
4 | Replace any faulty hangers or brackets. Is there still a vibration or rattling noise from the exhaust system? | -- | System OK | |||||||||
5 | Check for faulty exhaust system components. Are any of the components faulty? | -- | ||||||||||
6 | Replace the faulty components. Is there still exhaust leakage and/or excessive noise? | -- | System OK | |||||||||
7 | Check for leakage at the exhaust component joints or coupling. Is there leakage at the exhaust component joints or couplings? | -- | ||||||||||
8 | Align the components. Replace the gasket and tighten the flange bolts to specifications. If necessary, weld the joint where leakage is present. Refer to Fastener Tightening Specifications . Is there still exhaust leakage and/or excessive noise? | -- | System OK | |||||||||
9 | Inspect for loose connections or leaks at the exhaust manifold and the three way catalytic converter. Are there any loose connections at the exhaust manifold or the catalytic converter? | -- | ||||||||||
10 | Tighten all the fasteners to specifications. Refer to Fastener Tightening Specifications . Is there still exhaust leakage and/or excessive noise? | -- | System OK | |||||||||
11 | Check for a faulty exhaust manifold or manifold gasket. Is the exhaust manifold faulty? | -- | ||||||||||
12 | Replace any faulty exhaust manifolds or manifold seals. Refer to one of the following:
Is there still exhaust leakage and/or excessive noise? | -- | System OK | |||||||||
13 | Check for any leakage at the crossover pipe connection. Is there any leakage at the crossover pipe connection? | -- | -- | |||||||||
14 | Tighten the nuts and bolts to specifications. Refer to Fastener Tightening Specifications . Is there still exhaust leakage and/or excessive noise? | -- | -- | System OK |
