Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Check for faulty exhaust system components. Are any of the components faulty? | -- | ||
2 | Replace the faulty components. Is there still exhaust leakage and/or excessive noise? | -- | System OK | |
3 | Check for leakage at the exhaust component joints or coupling. Is there leakage at the exhaust component joints or couplings? | -- | ||
4 | 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 | |
5 | 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? | -- | ||
6 | Tighten all the fasteners to specifications. Refer to Fastener Tightening Specifications . Is there still exhaust leakage and/or excessive noise? | -- | System OK | |
7 | Check for a faulty exhaust manifold or manifold gasket. Is the exhaust manifold faulty? | -- | ||
8 | Replace any faulty exhaust manifolds or manifold seals. Refer to Exhaust Manifold Replacement in Engine Mechanical - 3.1L. Is there still exhaust leakage and/or excessive noise? | -- | System OK | |
9 | Check for any leakage at the crossover pipe connection. Is there any leakage at the crossover pipe connection? | -- | -- | |
10 | Tighten the nuts and bolts to specifications. Refer to Fastener Tightening Specifications . Is there still exhaust leakage and/or excessive noise? | -- | -- | System OK |
