U.S. Steps Up Scrutiny Into Stalling Toyotas
TOKYO — The U.S. government has beefed up its investigation into Toyota’s Corolla and Matrix vehicles because of a possible engine defect that can cause them to stall. The National Highway Traffic Safety Administration said in a statement that it was raising its preliminary evaluation to a more serious scrutiny called an engineering analysis to look into the problems that could cause the engine to stall, not start or to shift gear harshly. The investigation into the 2005, 2006 and 2007 model year Corolla and Corolla Matrix cars in the U.S. began Aug. 18, NHTSA said. Toyota is studying two possible causes for problems in the engine control units, both production defects, related to improper coating applied to circuit boards and a crack in the surface of a glass coating, according to NHTSA. It is unclear whether a recall will be necessary.
