Toyota recalls selectedsedans with 2.5-liter four-cylinder engines due to an unusual and potentially serious engine problem.
According to the Japanese automaker, 1,730 units of its mid-range sedan can have engines made with oversized pistons. These non-specification parts could "cause the vehicle to run rough, produce a strange sound, emit smoke from the exhaust, and flash warning lights and messages." These oversized pistons can cause a loss of power or cause the engine to stop working.
Toyota says the problematic pistons are "from a specific production phase", from late December 201
If you're wondering how oversized pistons get into the cylinder blocks, keep in mind that engines are built with incredibly tight tolerances, and this does not sound like an easily recognizable problem in the production line. Commenting on the roadshow, Toyota's safety spokesperson Victor Vanov said, "The tolerance for such a thing is so small that the human eye would never recognize [it]."
Toyota will begin by mailing out customers whose vehicles may be affected by this issue by the end of May, and dealers will check the production date codes of their pistons. If the service technicians find a match with the faulty parts, the entire engine will be replaced free of charge for the customer.
This is the second recall of the Camry 2018. In February, Toyota released an advertising campaignfor improperly connected fuel lines that could trigger a leak.
Update, 10:49 am ET: Added engine information and a statement from the Toyota spokesman.