04/09/2008 06:02. WASHINGTON -(Dow Jones)- An investigation into complaints that Toyota Tacoma pickup trucks accelerated without warning has found no evidence of safety defects, federal investigators said.

The National Highway Traffic Safety Administration began the inquiry in January after receiving a petition from the owner of a 2006 Tacoma who reported two instances of "unwanted acceleration," according to an agency report.

The investigation involved 62 complaints of "sudden and uncontrolled acceleration" of 2006 and 2007 Tacomas, which number more than 360,000.

The agency denied the petition last week. In a report summary, the investigator... // Smartmoney.com