Step | Action | Value(s) | Yes | No | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Test for improperly installed or misaligned components. Are there any improperly installed or misaligned components? | -- | Go to Step 2 | Go to Step 3 | ||||||||
2 | Align the components and tighten the connections to specifications. Refer to Fastener Tightening Specifications . Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 3 | |||||||||
3 | Test for loose connections at the exhaust manifold or the three way catalytic converter. Are there any loose connections at the exhaust manifold or the three way catalytic converter? | -- | Go to Step 4 | Go to Step 5 | ||||||||
4 | Tighten all the fasteners to specifications. Refer to Fastener Tightening Specifications . Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 5 | |||||||||
5 | Test for a cracked or broken exhaust manifold. Is the exhaust manifold cracked or broken? | -- | Go to Step 6 | Go to Step 7 | ||||||||
6 | Replace any cracked or broken exhaust manifolds. Refer to one of the following:
Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 7 | |||||||||
7 | Test for any leakage at the crossover pipe connection. Is there any leakage at the crossover pipe connection? | -- | Go to Step 8 | Go to Step 9 | ||||||||
8 | Tighten the nuts and the bolts to specifications. Refer to Fastener Tightening Specifications . Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 9 | |||||||||
9 | Test for any damaged or worn seals. Are there any damaged or worn seals? | -- | Go to Step 10 | Go to Step 11 | ||||||||
10 | Replace any damaged or worn seals. Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 11 | |||||||||
11 | Test for a burned or rusted exhaust pipe. Is there a burned or rusted exhaust pipe? | -- | Go to Step 12 | Go to Step 13 | ||||||||
12 | Replace the exhaust pipe. Refer to Muffler Replacement . Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 13 | |||||||||
13 | Test for a burned or rusted exhaust muffler. Is there a burned or rusted muffler? | -- | Go to Step 14 | Go to Step 15 | ||||||||
14 | Replace the muffler/tail pipe assembly. Refer to Muffler Replacement . Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 15 | |||||||||
15 | Test for leakage at the exhaust component joints or the couplings (if previously serviced). Is there any leakage at the exhaust component joints or the couplings? | -- | Go to Step 16 | |||||||||
16 | Replace the gaskets and tighten the flange bolts to specifications. Refer to Fastener Tightening Specifications . If necessary, weld the joint where leakage is present. Is there still exhaust leakage and/or excessive noise? | -- | -- |
