| EXCESSIVE EXHAUST NOISE (UNDER HOOD) |
1. Turbocharger housing cracked or broken. |
1. Replace the turbocharger. |
| 2. Turbocharger to cylinder head leak. |
2. Tighten the turbocharger and/or replace the gasket. |
| 3. EGR Valve to manifold gasket leakage. |
3. Tighten the fasteners or replace the gasket. |
| 4. EGR tube leakage. |
4. Tighten the fasteners or replace the gasket. |
| 5. Cracked or catalytic converter housing or flange. |
5. Replace the catalytic converter assembly. |
| EXCESSIVE EXHAUST NOISE |
1. Leak at exhaust pipe joints. |
1. Tighten the clamps at leaking joints. |
| 2. Burned or rusted out exhaust pipe or muffler assembly. |
2. Replace the exhaust pipe or the muffler assembly. |
| 3. Burned or rusted out exhaust resonator. |
3. Replace the exhaust resonator assembly. |
| 4. Restriction in exhaust system. |
4. Perform the RESTRICTION CHECK
. Replace defective component as necessary. |
| 5. Converter material in muffler. |
5. Replace muffler and converter assemblies. Check fuel injection and ignition systems for proper operation. |