Mack Leu recalls
- Mack excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces. 2011–2015 Mack LR6, Leu, Mru
- Mack in the affected vehicles, a component of the door opening mechanism may be too short and as a result, the door may not be able to be opened by someone inside the truck. 2015 Mack Leu
- Mack affected actuators may have an incomplete attachment of the internal rubber diaphragm to the actuation mechanism of the parking brake section of the Life Seal actuator. 2015–2016 Mack Cxu, Leu, Pinnacle
- Mack hazard warning lights may fail. 2007–2012 Mack CT, CV, Chu +7 more
- Mack condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor. 2010–2014 Mack Leu, Mru, Pinnacle
- Mack in the affected vehicles, the exhaust pipe may disconnect from the muffler/catalyst. 2010 Mack Leu
- Mack pro-torque nut may not have been installed correctly, which may result in a loosening of the nut. 2013 Mack Chu, Granite, Leu +2 more
- Mack clevis pin for the brake slack adjuster may be missing a cotter pin. 2013 Mack Chu, Granite, Leu +2 more
- Mack control box may lose its electrical ground. 2008–2009 Mack Gu, Leu, Mru
- Mack on these vehicles the alternator ground cable runs directly to the starter, which defeats the circuit protection. 2010–2011 Mack Leu, Mru
- Mack official notice describes a safety defect, but the details were not provided in plain language. 2009–2010 Mack Leu, Mru
- Mack tubing used to assemble the affected drivelines has a nonconforming seam weld with insufficient bonding of the material. 2012 Mack Granite, Leu, Mru +2 more
- Mack due to an incomplete "knitting" of the iron at the time of casting, inadequate structural integrity of the slack adjuster housing can occur, which could cause the housing to break at the handle under normal operating loads. 2011–2012 Mack Granite, Gu, Leu +2 more
- Mack electrical circuitry in these vehicles may not provide adequate overcurrent protection. 2008 Mack Leu, Mru
- Mack 121, "air brake systems." 2008 Mack Leu
- Mack rubber diaphragm inside the qrv may experience delamination resulting in significant levels of air pressure leakage past AND/OR through the diaphragm, or the development of a bubble in the diaphragm which may trap air pressure in the valve and not allow the service brakes to release. 2009 Mack Leu
- Mack on certain trucks, the daytime running lights (drl) module may contain a suspect METAL-OXIDE-SEMICONDUCTOR field effect transistor (mosfet) that could overheat. 2008 Mack Chu, Cxu, Gu +1 more