The automotive maintenance industry is a stagnant and chaotic situation with insufficient standardization. Car owners who frequently encounter problems and need to go to repair shops may have a deep understanding of this. Sometimes it's just some small problems in automobile clutch parts, Valve stem and other places that have been repaired. As a result, the maintenance shop said that there are major problems and that they need major repairs. Not to mention this, some even intentionally use some "black tricks", and many customers are deceived without knowing. A car owner, Mr. Tang, was intentionally adding some white sugar to the engine oil while the engine was being changed, causing the engine to heat up quickly and a "cylinder burning" malfunction occurred within a few days.
These "black shop" maintenance personnel often remind customers in advance that there are problems with parts such as the engine or clutch parts of the car, so that customers can stay vigilant. After a period of time, the problem mentioned by the maintenance personnel really happened, and the car owner thought their skills were very good, so they went to this store for repair. These "black tricks" are common faults that cannot be detected through regular testing. When car owners encounter sudden "difficult and complicated symptoms", it is possible that they have been hit by a "chain sleeve".
After winning the chain sleeve, it's about repairing and changing. It's extremely despicable to waste money and money, and even replace all the parts of a car that used to be a good one. So in the future, when car owners encounter problems with their cars, it is best to go to a reputable repair shop for repairs. Of course, it is not necessarily that all reputable repair points operate in a standardized manner, and there may also be a few instances of cat like behavior.