Here's what's involved:
* Diagnosis Confirmation: You first need to confirm it's a thrown rod. This usually involves a visual inspection (after removing the oil pan or other components) to see the broken rod and the damage it caused. A mechanic will likely need to do this. The symptoms (loud knocking, loss of power, smoke) could indicate other serious problems as well.
* Engine Removal: The engine needs to be removed from the Silverado. This is a major undertaking, requiring specialized tools and significant mechanical knowledge.
* Disassembly: The engine block is disassembled completely to assess the extent of the damage. This means removing pistons, crankshaft, bearings, and other components. Damage can include:
* Cracked or broken block: If the block is damaged, it likely needs to be replaced.
* Damaged crankshaft: The crankshaft is often bent or broken and needs replacement.
* Damaged pistons and connecting rods: These are likely damaged and need replacing.
* Cylinder wall scoring: The cylinder walls may be scored from the rod impacting them, requiring machining or replacement.
* Oil pump and pan damage: Often damaged by debris.
* Repairs/Replacement: Depending on the extent of the damage, the engine might be repairable through rebuilding: replacing damaged parts, machining the block to repair scoring, etc. However, if the damage is extensive, replacing the entire engine might be more cost-effective.
* Reassembly: Once repairs are complete, the engine is carefully reassembled, ensuring proper clearances and lubrication.
* Installation: The engine is reinstalled in the Silverado.
* Testing and Break-in: After installation, the engine is tested to ensure everything is functioning correctly.
In short, fixing a thrown rod is a massive job best left to experienced engine mechanics. The cost will be substantial, potentially reaching thousands of dollars depending on the engine and the extent of the damage. Consider the value of your Silverado before undertaking such a costly repair. You might be better off replacing the vehicle entirely depending on the cost of the repair versus the vehicle's value.
