Action | Value(s) | Yes | No | |
|---|---|---|---|---|
1 | Check for improperly installed or misaligned components. Are there improperly installed or misaligned components? | -- | ||
2 | Align the components and tighten the connections to specifications. Refer to Fastener Tightening Specifications . Is there exhaust leakage and /or excessive noise? | -- | System OK | |
3 | Check for loose connections at the exhaust manifold or the Three Way Catalytic Converter. Are there loose connections? | -- | ||
4 | Tighten all fasteners to specifications. Refer to Fastener Tightening Specifications . Is there exhaust leakage and/ or excessive noise? | -- | System OK | |
5 | Inspect the exhaust manifold. Refer to Exhaust Manifold Replacement in Engine Mechanical. Is the exhaust manifold cracked or broken? | -- | ||
6 | Replace the exhaust manifold. Is there exhaust leakage and /or excessive noise? | -- | System OK | |
7 | Inspect the crossover pipe connections. Is there leakage at the crossover pipe connections? | -- | ||
8 | Tighten the nuts and bolts to specifications. Is there exhaust leakage and /or excessive noise? | -- | System OK | |
9 | Inspect all seals. Are the seals damaged or worn? | -- | ||
10 | Replace the damaged or worn seals. Is there exhaust leakage and /or excessive noise? | -- | System OK | |
11 | Inspect the extension pipe. Is the extension pipe burned or rusted? | -- | ||
12 | Replace the extension pipe. Is there exhaust leakage and /or excessive noise? | -- | System OK | |
13 | Inspect the muffler. Is the muffler burned or rusted? | -- | Go to Step 15 | |
14 | Replace the muffler/ tailpipe assembly. Is there exhaust leakage and /or excessive noise? | -- | System OK | |
15 | Inspect for leakage at the exhaust component joints or couplings (if not previously serviced). Is there leakage? | -- | -- | |
16 | Replace the seals and tighten flange bolts to specifications or weld the joints where leakage is present. Is there still excessive noise or leakage? | -- | Go to Step 1 | System OK |
