U.S. regulators have launched an investigation into approximately 75,300 Nissan Frontier trucks, citing potential fuel leak issues that could pose safety concerns.
The National Highway Traffic Safety Administration is examining model-year 2006 vehicles following reports of strong gasoline odors and unexpected engine stalling.
Authorities warn the issue may present a serious fire hazard, particularly during startup or while the vehicle is in operation.
The probe was initiated after a petition highlighted recurring defects similar to those identified in earlier safety concerns.
Nissan previously recalled certain 2006 Frontier models in 2007 to address cracking fuel filler tubes linked to leakage risks.
The latest claims suggest those earlier fixes may not have fully resolved the issue across the affected vehicle population.
Regulators will assess whether additional action is required, including potential recalls or further corrective measures.
The investigation underscores ongoing scrutiny of vehicle safety and the importance of addressing persistent mechanical defects.
