How Do I Know When To Replace A Car Engine? ​

The car engine is like the "heart" of a vehicle, and any problems that occur will directly affect driving safety and experience. So, how to determine when it is necessary to replace the car engine?

1. Significant decrease in power

When you find that the vehicle accelerates slowly and climbs slopes weakly while driving, even if you step on the accelerator deeply, the speed increase is not significant. This is likely due to severe wear of internal engine components and insufficient cylinder pressure. At this point, the engine is unable to maintain normal power output and needs to be cautious about the need for replacement.

2. Frequent occurrence of abnormal noise

When the engine is running normally, the sound is smooth. If there is a sharp metal friction sound, continuous knocking sound, or a "bump" sound similar to a tractor, it means that the internal components of the engine such as the piston, crankshaft, and valves may be damaged. Long term neglect will exacerbate structural damage to the engine.

3. Serious oil and water leakage

If a large amount of oil stains are found at the bottom of the engine, the coolant is frequently missing, and even the phenomenon of "boiling" occurs, it indicates that the engine's seals are aging or there are cracks in the cylinder block. This not only leads to a decrease in power, but may also cause serious problems such as engine overheating and cylinder pulling.

4. High maintenance costs

When engine failures occur frequently, the number of repairs increases, and the accumulated repair costs approach or even exceed the cost of replacing a new engine, from an economic perspective, replacing the engine is a wiser choice.

If your car experiences one or more of the above situations, it is recommended to promptly go to a professional repair institution for a comprehensive inspection and evaluation to determine whether the engine needs to be replaced and ensure driving safety.

The above analysis examines the criteria for engine replacement from multiple perspectives. If you have any other questions about car maintenance or would like to know specific repair details, please feel free to communicate with me at any time.