CUMMINS ISB Recalls

Sep 08, 2015 – Cummins Inc. (Cummins) is recalling certain ISB6.7, ISL9, ISX12 and ISX15 engines. The affected engines have an Engine Control Module (ECM) that may short circuit and blow a fuse resulting in the engine stalling without warning.

Nov 29, 2012 – Cummins is recalling certain model ISB6.7 diesel engines manufactured from February 16, 2010, through May 4, 2012, equipped with fan pulley Part Number 3914462 and installed on certain Thomas Built Buses, Inc. school buses. The subject fan pulley is part of the accessory drive system on the front of the engine. This system is used to drive such components as the refrigerant compressors, the radiator fan, and the engine water pump. The web of the pulley can fatigue over time, causing the pulley to fail.

Aug 08, 2011 – CUMMINS IS RECALLING CERTAIN ISB6.7, ISC8.3, ISL9, ISX11.9, AND ISX15 ENGINES SHIPPED FROM SEPTEMBER 2010 THROUGH DECEMBER 2010 TO VARIOUS VEHICLE MANUFACTURERS. THESE ENGINES WERE INSTALLED IN RECREATIONAL VEHICLES, EMERGENCY VEHICLES, BUSES, AND CERTAIN TRUCK APPLICATIONS. THE V-BAND CLAMP ASSEMBLY, PART NUMBERS Q187684, Q187685, AND Q187686, USED TO CONNECT THE INLET AND OUTLET CONE SECTIONS TO THE DIESEL OXIDATION CATALYST (DOC)/DIESEL PARTICULATE FILTER (DPF) INCLUDE A T-BOLT WHICH CAN FRACTURE AND FAIL WHEN SUBJECTED TO STRESS OR LOAD. A FRACTURE OR FAILURE OF THE T-BOLT MAY CAUSE THE CLAMP TO LOOSEN AND THE INLET OR OUTLET SECTIONS ATTACHED TO THE DOC/DPF HOUSING TO DISCONNECT.

Jul 21, 2009 – CUMMINS IS RECALLING 912 ISB CM2150, ISC CM2150, ISL CM2150, ISM CM876, AND ISX CM871 MODEL DIESEL ENGINES INSTALLED AS ORIGINAL EQUIPMENT IN VARIOUS EMERGENCY VEHICLES. THE VEHICLES MAY BE DESIGNED WITH A HARD WIRED, DASH-MOUNTED SWITCH THAT ENABLES THE VEHICLE OPERATOR TO INHIBIT AFTERTREATMENT DIESEL PARTICULATE FILTER REGENERATION IN ENVIRONMENTS WHERE THE OPERATOR BELIEVES IT MAY BE UNSAFE FOR ELEVATED EXHAUST TEMPERATURES. DUE TO AN ISSUE WITH THE LOGIC IN THE ECM SOFTWARE IN THESE ENGINES, THE SWITCH MAY NOT FUNCTION CORRECTLY, LEADING THE OPERATOR TO BELIEVE THAT THE SWITCH IS IN "INHIBIT" MODE WHEN IT IS NOT.

Aug 29, 2005 – CERTAIN CUMMINS ISB-02 DIESEL ENGINES EQUIPPED WITH EMC CONTROLLED FUEL LIFT PUMPS. ERRATIC VOLTAGE SUPPLY TO THE FUEL LIFT PUMP CAUSES PREMATURE ELECTRIC BRUSH WEAR INTERNAL TO THE FUEL LIFT PUMP. THIS PREMATURE WEAR COULD RESULT IN FUEL LIFT PUMP FAILURE AND IN SOME CASES MAY CAUSE AN ENGINE STALL CONDITION.

Feb 02, 2005 – CERTAIN CUMMINS ISB DIESEL ENGINES EQUIPPED WITH FEDERAL-MOGAL 12 AND 24 VOLT FUEL LIFT PUMPS FOR USE IN CERTAIN SCHOOL BUSES, TRANSIT BUSES, AND EMERGENCY VEHICLES. THE FUEL PUMP COULD FAIL TO TRANSFER FUEL APPROPRIATELY CREATING AN ENGINE STALL CONDITION.

Feb 11, 2003 – CUMMINS ISB 6 CYLINDER ENGINES BUILT FROM MARCH 1998 THROUGH FEBRUARY 1999, AND HAVE AN ENGINE SERIAL NUMBER WITHIN THE RANGE OF 45480143 TO 45818756 OR 56436052 TO 56561539. THE LOWER ALTERNATOR SUPPORT BRACE OR MOUNTING HARDWARE CAN LOOSEN OR BREAK WHICH WILL ALLOW THE ALTERNATOR TO DROP ONTO THE ENGINE.

Feb 11, 2003 – THE ISB 4 CYLINDER CRANKSHAFT VIBRATION DAMPERS INSTALLED FOR USE ON CHASSIS MANUFACTURED BY WORKHORSE AND FREIGHTLINER CUSTOM CHASSIS. THE AFFECTED ENGINES WERE BUILT FROM OCTOBER 2000 THROUGH JULY 2001, AND HAVE AN ENGINE SERIAL NUMBER WITHIN THE RANGE OF 21436401 TO 21478129. THE CRANKSHAFT VIBRATION DAMPERS WERE DESIGNED INCORRECTLY AND CAN LEAD TO CRACKS DEVELOPING IN THE HUB, CAUSING THE PART TO BECOME LOOSE AND POSSIBLY DETACH ITSELF FROM THE ENGINE.