During thermal management testing of certain 2015 Ford Mustang vehicles with 2.3L engines, elevated fuel tank surface temperatures were observed. To investigate, Ford performed additional thermal management testing on all engine variants and multiple vehicles. The investigation found that prolonged exposure to elevated under body temperatures can cause degradation of the fuel tank, fuel vapor lines, and parking brake cable seals. Leaks within these systems could result in a vehicle fire or degraded parking brake functions.
Owners receiving notices will be asked to return to their dealership to have the fuel tank shield replaced, thermal patches added to the fuel tank and parking brake cable, and thermal wraps to the fuel vapor lines. For more information about the problem, owners are asked to contact Ford customer service at 1-866-436-7332. Ford’s number for this recall is 15S19 and the NHTSA campaign number is 15V-339.