Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Inspect for heat shields that contact the exhaust pipes when cold, AND after a warm-up. Are the heat shields misaligned or loose? | -- | Go to Step 2 | Go to Step 3 |
2 | Tighten the heat shield fasteners. Refer to Fastener Tightening Specifications . Is there still exhaust noise? | -- | Go to Step 3 | System OK |
3 | Inspect for leaks at the exhaust manifold and the exhaust pipe connections. Are there leaks? | -- | Go to Step 4 | Go to Step 5 |
4 | Tighten the leaking connections to the proper specifications. Refer to Fastener Tightening Specifications . Is there still exhaust noise? | -- | Go to Step 5 | System OK |
5 | Inspect the muffler. Is the muffler burned or rusted? | -- | Go to Step 6 | Go to Step 7 |
6 | Replace the muffler. Refer to Muffler Replacement . Is there still exhaust noise? | -- | Go to Step 7 | System OK |
7 | Inspect for a burned or rusted exhaust pipe. Is the exhaust pipe burned or rusted? | -- | Go to Step 8 | Go to Step 9 |
8 | Replace the burned or rusted exhaust pipe. Refer to Exhaust Pipe Replacement . Is there still exhaust noise? | -- | Go to Step 9 | System OK |
9 | Inspect for a leak at the exhaust crossover pipe at the manifold flange. Is there a leak? | -- | Go to Step 10 | Go to Step 11 |
10 | Repair the leak. Is there still exhaust noise? | -- | Go to Step 11 | System OK |
11 | Inspect for a cracked or broken manifold. Is the manifold cracked or broken? | -- | Go to Step 12 | Go to Step 13 |
12 | Replace the manifold. Refer to one of the following: Is there still exhaust noise? | -- | Go to Step 13 | System OK |
13 | Inspect for leaks between the manifold and the cylinder head. Is there a leak? | -- | Go to Step 14 | System OK |
14 | Tighten the manifold-to-cylinder head fasteners to specifications. Refer to Fastener Tightening Specifications . Is there still exhaust noise? | -- | -- | System OK |
