For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Check the connection of the following:

• | The exhaust manifold-to-cylinder head connection

• | The front pipe/three-way catalytic converter (TWC) assembly-to-exhaust manifold connection

• | The resonator/muffler/tail pipe assembly-to-front pipe/TWC assembly connection

Are there any loose connections?

--

Go to Step 2

Go to Step 3

2 | Tighten all bolts and nuts to the specifications. Does the exhaust system leak or have excessive noise? | -- | Go to Step 3 | System OK
3 | Check for a defective seal or gasket. Is the seal or gasket defective? | -- | Go to Step 4 | Go to Step 5
4 | Replace the defective seal or gasket. Does the exhaust system leak or have excessive noise? | -- | Go to Step 5 | System OK
5 | Check the exhaust manifold and other system components for cracks. Are there any cracks in the exhaust manifold or other components? | -- | -- | Go to Step 6
6 | Replace any cracked components. Does the exhaust system leak or have excessive noise? | -- | -- | System OK