For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Check 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 | System OK
3 | Check 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 | System OK
5 | Check 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 Exhaust Manifold Replacement in Engine Mechanical - 3.4L. Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 7 | System OK
7 | Check 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 | System OK
9 | Check 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 | System OK
11 | Check for a burned or rusted extension pipe. Is there a burned or rusted extension pipe? | -- | Go to Step 12 | Go to Step 13
12 | Replace the extension pipe. Refer to Muffler Replacement . Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 13 | System OK
13 | Check 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 exhaust system. Refer to Muffler Replacement . Is there still exhaust leakage and/or excessive noise? | -- | Go to Step 15 | System OK
15 | Check 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? | -- | -- | System OK