|    •  | 
  
 
Clean the oil pan mating surface. | 
 
|    •  | Clean the oil pan. Remove all the sludge and the oil deposits. | 
 
|    •  | Inspect the threads for the oil level sensor and the engine oil
drain plug. | 
 
|    •  | Inspect the oil pan for dents or distortion. | 
 
|    •  | Repair or replace the oil pan as necessary. |