Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| ENGINE AND ENGINE COOLING | |||||
| 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 | |||||
| SP-263-047 | 06/01/2011 | 10040724 | Mack trucks: there may be incorrect torque specifications on the fan hub assembly. *rm | 09/12/2011 | |
| SP-263-047 | 06/01/2011 | 10040724 | Ready | 09/12/2011 | |
| 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 | |
| PI-0761 | 10/01/2011 | 10042145 | Mack trucks: to prevent grounding of positive terminal of an alternator on certain truck (cxu) engines, the clutch cable at the alternator (denso) has been rerouted. *pe | 11/28/2011 | |
| SP-284-030 | 05/01/2011 | 10040725 | Ready | 09/12/2011 | |
| SP-284-030 | 05/01/2011 | 10040725 | Mack trucks: there are engine ecm software updates. *rm | 09/12/2011 | |
| ENGINE AND ENGINE COOLING - ENGINE - DIESEL | |||||
| 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 | Ready | 06/07/2011 | |
| SP-284-028 | 12/01/2010 | 10037914 | Mack truck: there is a software update. *rm | 06/07/2011 | |
| 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 | |
| ENGINE AND ENGINE COOLING - EXHAUST SYSTEM | |||||
| 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 | |
| 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 | Mack: procedure to fix the an insulation blanket in the exhaust system that can deteriorate over time. *rm | 08/16/2011 | |
| SP-252-002 | 01/01/2011 | 10040064 | Ready | 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 | |