What are the common issues after engine replacement?
1 Answers
The most likely problems after engine replacement are: 1. The quality of seals and screws replaced during disassembly and installation is inferior to the original parts: Many seals and screws are for one-time use only, and even if all are replaced, the quality of these new parts still differs from the original factory parts. Original factory parts and those used for maintenance replacement are not the same concept—the best quality parts are used for vehicle assembly, while batches of lesser quality are supplied to the aftermarket as replacement parts. This shows that replacing an engine is a significant event for a new car, affecting both performance and lifespan, with many uncertainties in later use. 2. Vehicle depreciation: For used car resale value, the more original the car, the higher its resale value. Typically, when purchasing a used car, buyers will inspect the vehicle's condition or commission a third-party inspection. If it is discovered that the engine has been replaced, buyers may negotiate a lower price or decline to purchase altogether. 3. Administrative challenges: Every vehicle's documentation includes the engine number and specifications. Even if the replacement engine is of the same model and displacement, the engine number may not match, though there should be methods to address this. If a larger displacement engine is installed, it may be difficult to explain during annual inspections or traffic stops, potentially constituting illegal modification.
