Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| ENGINE AND ENGINE COOLING | |||||
| SP-218-001 | 07/01/2011 | 10040396 | Ready | 08/29/2011 | |
| SP-218-001 | 07/01/2011 | 10040396 | Mack trucks: there are four missing bolts in the engine frame and mount. *rm | 08/29/2011 | |
| SB-262-008 | 12/01/2010 | 10037935 | Ready | 06/08/2011 | |
| SB-262-008 | 12/01/2010 | 10037935 | Mack trucks: there is a new thermostat seal and cover to prevent coolant leakage. *rm | 06/08/2011 | |
| ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN | |||||
| SB-263-046 | 12/01/2010 | 10037725 | Mack: fan rings are cracking during extreme service. *rm | 06/06/2011 | |
| ENGINE AND ENGINE COOLING - COOLING SYSTEM - HOSE | |||||
| PI-0746 | 10/01/2011 | 10042144 | Mack trucks: on certain trucks (chu, cxu gu td), all aftertreatment diesel exhaust fluid (def) coolant hoses are to be replaced. *pe | 11/28/2011 | |
| FSB-293-011 | 07/01/2011 | 10040514 | Ready | 08/31/2011 | |
| FSB-293-011 | 07/01/2011 | 10040514 | Mack trucks: there are new egr outlet hose clamps. *rm | 08/31/2011 | |
| ENGINE AND ENGINE COOLING - ENGINE | |||||
| FSB-212-002 | 04/01/2012 | 10044248 | Mack trucks: oil seepage at flywheel housing. this problem has already been solved in production, but the production solution is not compatible with previous generation flywheel housings. *js | 05/24/2012 | |
| FSB-255-023 | 04/01/2012 | 10044247 | Mack 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 include | 05/24/2012 | |
| SP-284-030 | 05/01/2011 | 10040725 | Mack trucks: there are engine ecm software updates. *rm | 09/12/2011 | |
| SP-284-030 | 05/01/2011 | 10040725 | Ready | 09/12/2011 | |
| TB-284-021 | 11/01/2010 | 10036935 | Mack: 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. *pe | 04/20/2011 | |
| ENGINE AND ENGINE COOLING - ENGINE - DIESEL | |||||
| PI-0795 | 08/01/2012 | 10045821 | Mack truck: aftertreatment diesel particulate filter (dpf) inlet pipe may possibly exhibit an exhaust leak. to improve sealing function of dpf inlet pipe, the dpf inlet pipe flange was modified. model gu. model years 2011-12. * | 09/17/2012 | |
| PI-0760 | 09/01/2011 | 10043093 | Mack truck: on certain vehicles, the aftertreatment diesel exhaust fluid (def) solenoid valve was incorrectly mounted backwards. this causes coolant to lift valve seat and flow continuously, overheating and possibly illuminating indicato | 02/21/2012 | |
| FSB-258-030 | 11/01/2011 | 10042490 | Mack truck: between aftertreatment hydrocarbon dosing module initial design and boss on mp8 engine, an interference was discovered. it prevents bracket and aftertreatment hydrocarbon dosing module from mounting flush to surface of engin | 12/12/2011 | |
| PI-0746 | 10/01/2011 | 10042144 | Mack trucks: on certain trucks (chu, cxu gu td), all aftertreatment diesel exhaust fluid (def) coolant hoses are to be replaced. *pe | 11/28/2011 | |
| SP-284-028 | 12/01/2010 | 10037914 | Mack truck: there is a software update. *rm | 06/07/2011 | |
| SP-284-028 | 12/01/2010 | 10037914 | Ready | 06/07/2011 | |
| SB-810-002 | 08/01/2010 | 10037019 | Ready | 04/27/2011 | |
| SB-810-002 | 08/01/2010 | 10037019 | Mack truck: cab/dashboard panel cracks may form due to excessive cab flexing during extreme use of the trucks. *rm | 04/27/2011 | |
| SB-258-021 | 11/01/2010 | 10036937 | Mack: 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 compon | 04/20/2011 | |
| TB-284-021 | 11/01/2010 | 10036935 | Mack: 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. *pe | 04/20/2011 | |
| ENGINE AND ENGINE COOLING - ENGINE - GASOLINE - TURBO-CHARGER | |||||
| FSB-258-033 | 07/01/2012 | 10044959 | Mack trucks: engine tubocharger compressor bypass valve, airline routing. this document covers the procedure for routing the flexible air line around the front of the engine if the existing steel air line fail. *js | 08/08/2012 | |
| ENGINE AND ENGINE COOLING - ENGINE - OTHER FUEL TYPES - TURBO-CHARGER | |||||
| FSB-255-024-03 | 05/01/2012 | 10044324 | Mack: 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. *pe | 06/12/2012 | |
| FSB-258-029 | 11/01/2011 | 10042489 | Mack trucks: software update installation of engine turbocharger compressor bypass valve kit for the engine control module (ecm). *pe | 12/12/2011 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM | |||||
| PI-0760 | 09/01/2011 | 10043093 | Mack truck: on certain vehicles, the aftertreatment diesel exhaust fluid (def) solenoid valve was incorrectly mounted backwards. this causes coolant to lift valve seat and flow continuously, overheating and possibly illuminating indicato | 02/21/2012 | |
| SB-214-024 | 11/01/2010 | 10037488 | Mack trucks: if there is a failed outer valve spring there is a replacement procedure. *rm | 05/24/2011 | |
| SB-214-024 | 11/01/2010 | 10037488 | Ready | 05/24/2011 | |
| SB-258-021 | 11/01/2010 | 10036937 | Mack: 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 compon | 04/20/2011 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - CATALYTIC CONVERTOR | |||||
| FSB-258-026 | 06/01/2011 | 10040693 | Ready | 09/07/2011 | |
| FSB-258-026 | 06/01/2011 | 10040693 | Mack trucks: the location of the nitrous oxyde sensor and piping around it has been changed to protect it from moisture damage if water enters the exhaust. *rm | 09/07/2011 | |
| SP-252-002 | 01/01/2011 | 10040064 | Ready | 08/16/2011 | |
| SP-252-002 | 01/01/2011 | 10040064 | Mack: procedure to fix the an insulation blanket in the exhaust system that can deteriorate over time. *rm | 08/16/2011 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - GAS RECIRCULATION VALVE (EGR VALVE) | |||||
| PI-0796 | 08/01/2012 | 10045822 | Mack 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. *pe | 09/17/2012 | |
| FSB-293-011 | 07/01/2011 | 10040514 | Mack trucks: there are new egr outlet hose clamps. *rm | 08/31/2011 | |
| FSB-293-011 | 07/01/2011 | 10040514 | Ready | 08/31/2011 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE | |||||
| SP-252-001 | 01/01/2011 | 10040084 | Mack: procedure to fix the an insulation blanket in the exhaust system that can deteriorate over time. *rm | 08/16/2011 | |
| SP-252-001 | 01/01/2011 | 10040084 | Ready | 08/16/2011 | |