For 1990-2009 cars only
| • | Detonation or spark knock. Check for proper operation of the cooling, knock, and ignition control components. |
| Refer to diagnostic information in Engine Controls. |
| • | Loose prop shaft hub. Repair or replace as necessary. |
| • | Exhaust leak at the manifold. Tighten the exhaust manifold bolts and/or replace the gasket. |
| Refer to Exhaust Manifold Installation . |
| • | Excessive connecting rod bearing clearance |
| • | Excessive piston pin-to-bore clearance |
| • | Excessive crankshaft thrust bearing clearance |
| • | Bent connecting rod. Replace as necessary. |
