On certain diesel powered heavy duty trucks, the bolts attaching the fuel tank mounting brackets to the frame may have insufficient torque and therefore may result in premature failure of the fuel tank mounting.
Fuel system
Mack MR Fuel System problems by year
0 complaints filed with NHTSA about the Mack MR's fuel system. Fuel pumps, leaks, injectors, fuel smells, gauges and stalling caused by fuel delivery.
Fuel System complaints by model year
Fuel System recalls
On certain chassis built with lng engines, the nexgen lng tank's primary and secondary relief valves could fail to open and relieve tank pressure.
Latest MR fuel system complaints
No complaints in this area yet.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data