Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING - COOLING SYSTEM
FB-284-02711/01/201010037304Ready05/18/2011
FB-284-02711/01/201010037304Mack: there are engine diagnostic trouble codes and there may need to be a software update. *rm05/18/2011
ENGINE AND ENGINE COOLING - COOLING SYSTEM - HOSE
PI-074510/01/201110042124Mack truck: all aftertreatment diesel exhaust fluid (def) coolant hoses on leu and mru trucks have an available campaign for replacement. no model years listed. *pe11/28/2011
SB-258-02505/01/201110041574Mack truck: replacement of aftertreatment diesel exhaust fluid (def) coolant hose replacement. *pe10/05/2011
ENGINE AND ENGINE COOLING - COOLING SYSTEM - RADIATOR ASSEMBLY
FSB-261-03407/01/201210044961Mack trucks: radiator tie rod bracket. the radiator tie rod bracket (left side) on mack leu trucks equipped with cummins isl-g natural gas engines have the potential risk of making contact with the bottom of the cab. *js08/08/2012
ENGINE AND ENGINE COOLING - ENGINE
FSB-255-02304/01/201210044247Mack trucks: severe fretting damage of the engine variable geometry turbocharger actuator (engine vgt actuator) harness and turbine shaft speed sensor (tss) connectors may cause an unreliable signal to the engine vgt actuator. also include05/24/2012
PI-077011/01/201110042509Mack truck: the latest software upgrade to be received by certain mack mp7 engine control modules (ecm) and aftertreatment control modules (acm). *pe12/13/2011
SP-284-03005/01/201110040725Ready09/12/2011
SP-284-03005/01/201110040725Mack trucks: there are engine ecm software updates. *rm09/12/2011
TB-284-02111/01/201010036935Mack: engine ecu reprogramming. the mack mp7 and mp8 with multiple engine enhancements will have new software. the egr mass flow, and aftertreatment doser and nox sensor are included in the enhancement. *pe04/20/2011
ENGINE AND ENGINE COOLING - ENGINE - DIESEL
FSB-258-02811/01/201110042464Mack truck: due to the low ground clearance, the aftertreatment diesel exhaust fluid (def) pump's location may become damaged. *pe12/07/2011
SB-258-02111/01/201010036937Mack: diesel exhaust fluid pump, repair. on certain trucks, repairs has been authorized on diesel exhaust fluid (def) pump. the only exception for this procedure is to replace heating bracket on def pump which is not a serviceable compon04/20/2011
TB-284-02111/01/201010036935Mack: engine ecu reprogramming. the mack mp7 and mp8 with multiple engine enhancements will have new software. the egr mass flow, and aftertreatment doser and nox sensor are included in the enhancement. *pe04/20/2011
ENGINE AND ENGINE COOLING - ENGINE - OTHER FUEL TYPES - TURBO-CHARGER
FSB-255-024-0305/01/201210044324Mack: an unreliable signal to engine vgt actuator from engine variable geometry turbocharger (vgt) actuator harness that has severe fretting damage, the connector pin and socket contacts should be replaced. *pe06/12/2012
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
FSB-252-02601/01/201210043369Mack truck: the current exhaust pipe is replaced by a two piece flex pipe and diesel particulate filter (dpf) inlet pipe. leu, mru. no model year listed. *pe03/20/2012
PI-074510/01/201110042124Mack truck: all aftertreatment diesel exhaust fluid (def) coolant hoses on leu and mru trucks have an available campaign for replacement. no model years listed. *pe11/28/2011
SP-373-01405/01/201110040729Mack trucks: connector plugs for the fuel heater solenoid may be missing. *rm09/12/2011
SP-373-01405/01/201110040729Ready09/12/2011
SB-214-02411/01/201010037488Ready05/24/2011
SB-214-02411/01/201010037488Mack trucks: if there is a failed outer valve spring there is a replacement procedure. *rm05/24/2011
SB-258-02111/01/201010036937Mack: diesel exhaust fluid pump, repair. on certain trucks, repairs has been authorized on diesel exhaust fluid (def) pump. the only exception for this procedure is to replace heating bracket on def pump which is not a serviceable compon04/20/2011
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - GAS RECIRCULATION VALVE (EGR VALVE)
PI-079608/01/201210045822Mack truck: information provided regarding modification of egr valve on engines and removal of poppet shaft end cap o rings. models chu, cxu, gu, leu, mru. no model years listed. *pe09/17/2012