For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Inspect the turning tubes and the muffler. Are the baffles in the muffler or the turning tubes dislodged? | -- | Go to Step 2 | Go to Step 3
2 | Replace the muffler. Refer to Muffler . Does the vehicle still have a loss of power and/or internal rattles? | -- | Go to Step 3 | System OK
3 | Inspect the catalytic converter. Are there baffles in the catalytic converter? | -- | Go to Step 4 | Go to Step 5
4 | Replace the catalytic converter. For the three-way catalytic converter, refer to Catalytic Converter Replacement . For the oxidation catalytic converter, refer to Oxidation Catalytic Converter . Does the vehicle still have a loss of power and/or internal rattles? | -- | Go to Step 5 | System OK
5 | Inspect the exhaust pipe. Are there baffles in the exhaust pipe? | -- | Go to Step 6 | --
6 | Replace the exhaust pipe. Refer to Exhaust Pipe Replacement . Does the vehicle still have a loss of power and/or internal rattles? | -- | -- | System OK