Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
TSIB 22-12
MCI has released Technical Service Information Bulletin (TSIB) 22-12 to address concerns with water ingress in remote switch box. The TSIB provides guidance on how to rework the box to inhibit water intrusion and connector corrosion
TSIB 22-03
Technical Service Information Bulletin describing the replacement of seating backrest attachment hardware with the addition of a mechanical lock nut on specifically equipped buses manufactured prior to model year 2020.
TSIB 21-01
This Technical Service Information Bulletin (TSIB) describes an update from Meritor for the bolt torque application requirements on hub-to-rotor bolts for the front, drive and tag axles, on specific coaches equipped with Meritor EX225 disc brakes, on either Conventional, PreSet or Unitized Wheel-End hubs.
SB 3139
This Service Bulletin provides a checklist of actions to perform on a daily, weekly and monthly basis for parked coaches before they are considered ready for driving.
SB 3143
This Service Bulletin informs affected owners of the steps to add a tensioner bracket to increase the tension on the A/C compressor belt.
D20M4
DDC Field service campaign for GHG17 Detroit DD13 engines requiring software reprogramming and new emission label replacement. This field service applies only to MCI (Motor Coach Industries) vehicles.
P08-54
This Procedure outlines the steps to install a relief valve on the air compressor for coaches equipped with DD13 engines.
P 09-11
This Procedure outlines the steps to replace the fuel overflow hose and clamp on the fuel tank on model year 2011-2020 J4500 model coaches.
SB 3118
This Service Bulletin informs affected owners of 1997-2013 E4500 and 2001-2015 J4500 model coaches equipped with Rear Axle Steering (RAS) system of the importance of maintaining tag axle caster, and provides the procedure to adjust the caster, if necessary.
SB 3114
This Service Bulletin informs affected owners of model year 2011-2019 J4500 coaches equipped with entrance door sensor MCI P/N 07-19-1176, of the procedure to adjust the entrance door sensor for proper sensor alignment. The procedure also outlines the application of a thread locker to prevent sensor movement.
SB 3105
This Service Bulletin informs affected customers to routinely inspect the wheelchair power circuit breaker and cable connections for corrosion every 6,000 miles/9,000 km on model year 2009-2017 MCI J4500 model coaches equipped with a Braun wheelchair lift.
SB 446
This Service Bulletin informs affected customers that model year 2011-2017 MCI J4500 model coaches may exhibit signs of premature wear or cracks in the A/C compressor support tube, which may cause the drive belt for the A/C compressor to fail or slip off the pulley, resulting in loss of function of the air conditioning, and that MCI will remedy the affected coaches at no cost to the customers.
SB 3101
This Service Bulletin informs affected customers that ZF Friedrichshafen AG has released a Service Information bulletin regarding checking axle hubs and wheel heads if an ABS tell-tale lamp is activated during coach operation on MCI J model coaches, and that immediate action is required in such event to prevent an overheat condition.
SB 3099
This Service Bulletin informs affected customers of the maintenance procedures for the Torca Accuseal clamp utilized on the connection between the after-treatment system (selective catalyst reduction device) and tailpipe; that the clamp is a one time usage clamp; and that a new clamp must be utilized after any service or maintenance is performed in which the existing clamp was loosened or removed on MCI D and MCI J model coaches.
3087
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB 3088
This Service Bulletin informs customers that MCI has created a procedure outlining the required steps to clean the fixed radiator on model year 2010-2016 MCI J4500 model coaches.
SB 424B
This Service Bulletin supersedes Service Bulletin 424 in its entirety and informs customers that MCI was notified by Cummins Inc. that it has issued a campaign to addresses the ISX lubricating oil filter bypass valve in addition to the previous fuel pump repair with a new bypass valve that has more effective sealing capability and provides better protection to fuel pump lubricated components on model year 2008-2013 MCI D model coaches and model year 2011-2014 MCI J4500 model coaches. This program is being performed only by Cummins Service Network and its authorized dealers, therefore, all parts and labor required for this program will be provided by Cummins.
SB-426
MOTOR COACH IND.: INFORMATION PROVIDED REGARDING SOME MOTOR COACHES WITH INCORRECT ENGINE COOLANT SENSOR INSTALLED WHICH MAY AFFECT OPTIMUM ENGINE PERFORMANCE AND NEED TO BE CORRECTED. MODEL J4500. NO MODEL YEARS LISTED. *PE
SB 424
This Service Bulletin informs customers that MCI was notified by Cummins Inc. that it has released Campaign C1638 that addresses the ISX lubricating oil filter bypass valve in addition to the previous fuel pump repair actions outlined in MCI SB 419 and Cummins FCP C1556 on model year 2008-2013 MCI D model coaches and model year 2011-2014 MCI J4500 model coaches. This program is being performed only by Cummins Service Network and its authorized dealers, therefore, all parts and labor required for this program will be provided by Cummins.
SB-424
MOTOR COACH IND.: SOME COACHES NEED TO HAVE THE LUBRICATING OIL FILTER BYPASS VALVE AND FUEL PUMP REPAIRED DUE TO VENDOR'S INSTALLATION. MODEL D, J4500. NO MODEL YEARS LISTED. *PE
SB 419
This Service Bulletin informs affected customers that MCI was notified by Cummins Inc. that it has issued a campaign to address ISX high pressure fuel pump ceramic plunger fractures as well as the potential of damage to the roller/tappet assembly on model year 2011-2013 MCI D model coaches and model year 2011-2014 MCI J4500 model coaches. This program is being performed only by Cummins Service Network and its authorized dealers, therefore, all parts and labor required for this program will be provided by Cummins.
SB 411
This Service Bulletin informs affected customers that the diesel exhaust fluid (DEF) pressure line may exhibit signs of fatigue and melting on model year 2011-2014 MCI J4500 model coaches, and that MCI will remedy the affected coaches at no cost to the customers.
SB-3082
MOTOR COACH IND. (MCI): TO CORRECT AN ACTIVE FAULT CODE (2311), EXPERIENCED IN THE ENGINE, A NEW CALIBRATION ECM IS BEING INSTALLED. *PE
SB-402
MCI: AN INCORRECT PART FOR APPLICATION FOR DIESEL EXHAUST FLUID (DEF) NOZZLE SUPPLY HOSE AND METERING UNIT FITTING RESULTED IN LEAKING DEF, THE ILLUMINATION OF CHECK ENGINE TELL TALE LIGHT ON INSTRUMENT PANEL AND IF NOT ADDRESSED, ENGINE WOULD INITIATE SHUTDOWN SEQUENCE. MODEL J4500. NO YEARS LISTED. *PE
SB-400
MCI: AN INCORRECT SENSOR WIRING, FOR DEF TANK LEVEL SENSOR, AT PRODUCTION PLANT CAUSES THE CHECK ENGINE LIGHT TO COME ON AND WOULD NEED TO BE REWIRED. MODEL J4500. NO YEARS LISTED. *PE
SB 399
This Service Bulletin informs affected customers that the electronic control unit (ECU), which controls the antilock braking system (ABS) on the trailing (tag) axle, was installed incorrectly at the production plant on coaches equipped with a rear axle steering (RAS) tag axle could result in unnecessary yaw corrections by the electronic stability control (ESC) system at speeds below 20 mph on model year 2011-2013 MCI J4500 model coaches, and that MCI will remedy the affected coaches at no cost to the customers.
SB 396
This Service Bulletin informs customers that MCI was notified by Cummins Inc. that it has released Campaign C1344 that addresses a calibration change, which Cummins advises will improve the engine and aftertreatment reliability on Cummins ISX engines in model year 2011-2013 MCI D model coaches, model year 2011-2013 MCI E4500 model coaches and model year 2011-2013 MCI J4500 model coaches. This program is being performed only by Cummins Service Network and its authorized dealers, therefore, all parts and labor required for this program will be provided by Cummins.
SB 3077
This Service Bulletin informs affected customers that MCI was notified by Shaw Development that the diesel exhaust fluid (DEF) tank cap requires routine cleaning to prevent the potential for crystallization build up at the vent, which may result in potential vacuum issues which could result in collapsing of the tank walls on MCI D model coaches, MCI E4500 model coaches and MCI J4500 model coaches.
SB 393
This Service Bulletin informs affected customers that MCI was notified by Cummins Inc. that it has issued campaign C1241 that addresses a calibration issue, which results in the engine brakes being energized with 24 volts rather than the required 12 volts on Cummins ISX engines in model year 2011-2012 MCI D model coaches, model year 2011-2012 MCI E4500 model coaches, and model year 2011-2012 MCI J4500 model coaches. This program is being performed only by Cummins Service Network and its authorized dealers, therefore, all parts and labor required for this program will be provided by Cummins.
SB 3074
This Service Bulletin informs affected customers of the procedures to replace the existing 2007 EPA Cummins engine harness p-clip, in the event that loom damage or chafing has occurred on model year 2008-2011 MCI E4500 model coaches and model year 2007-2011 MCI J4500 model coaches, and that MCI has a parts kit available for purchase.
SB 389
This Service Bulletin informs affected customers that the retention nut utilized on the Leece Neville alternator pulley installation is not maintaining the proper torque which may result in alternator bearing failure on model year 2011-2012 MCI D model coaches, 2011-2012 MCI E4500 model coaches, and 2011-2012 MCI J4500 model coaches, and that MCI will remedy the affected coaches at no cost to the customers.
SB-390
MOTOR COACH INC: DRIVE AXLE SUSPENSION SUPPORT STRUCTURE MAY ACCUMULATE WATER CAUSING SUPPORT STRUCTURE DAMAGE DUE TO EXPANSION, IN FREEZING TEMPERATURES, WHILE COACH IS BEING OPERATED. MODELS E4500, J4500. NO MODEL YEARS LISTED. *PE UPDATED 12/10/12. *PE
SB-383-B
MCI: ADDITIONAL LOAD PLACED ON ENGINE'S INTERNAL GEARS, RESULTING IN VIBRATION TRANSMITTED TO STEERING WHEEL CAUSED BY AIR COMPRESSOR CUTTING IN, AT LOW SPEED, AND A DEMAND FOR POWER STEERING. *PE
SB-386
MCI: ON SOME COACHES, DUE TO AN ABSENCE OF WASHER, THE FAN CLUTCH BRACKET BUSHING MAY WALK OUT OF BRACKET AND ALLOW CLUTCH MISALIGNMENT AND BELT FAILURE. *PE
SB-374
MCI: THE MANUFACTURING PROCESS OF FAN CLUTCH COOLING RING FINS MAY CAUSE COACHES TO EXPERIENCE MISSING PORTIONS AND/OR STRESS CRACKS. NO MODEL YEARS LISTED. *PE
SB-376
MCI: DUE TO FAILURE OF DIODE, WHICH CAUSED DESIGNATED FUSE TO BLOW, THE BOOST PUMP (CODE A22) FAIL TO OPERATE PROPERLY. NO MODEL YEARS LISTED. *PE
SB-367
MOTOR COACH INDUSTRIES: ON SOME COACHES, WATER MAY MIGRATE ONTO/INTO THE TRANSMISSION AND/OR THE FILL TUBE, THROUGH THE BREATHER VENT THAT IS LOCATED ON TOP OF TRANSMISSION. NO MODEL YEARS LISTED. *PE
SB-368
MOTOR COACH INDUSTRIES: BULLETIN INFORMATION ON SOME MOTOR COACHES, AT A HIGH TEMPERATURE THRESHOLD THAT THE DRIVE AXLE WHEEL HUB COVER WOULD BECOME DETACHED DURING THE OPERATION OF THE MOTOR COACH. NO MODEL YEARS LISTED. *PE
SB-3066
MOTOR COACH INC: BULLETIN PERTAINING TO THE REVISED REPLACEMENT DIRECTIONAL/SIDE MARKER LIGHTS. TO ELIMINATE POTENTIAL CRACKS THAT RESULT IN WATER INTRUSION, REVISED LIGHTS FOAM BACKING WAS REMOVED BETWEEN MARKER LIGHT AND COACH BODY. *PE
SB-360
MOTOR COACH INDUSTRIES: A TUBE MAY CRACK THAT SUPPORTS THE SNUBBER BRACKET DUE TO ROAD VIBRATION. *RM
SB-357
MOTOR COACH INDUDSTRIES: INFORMATION ON REPLACING THE COOLANT PUMP THAT MAY HAVE A PROBLEM. *RM
354
MOTOR COACH INDUSTRIES SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THERE MAY BE A HARSH DOWNSHIFT, RPM FLARE, OR THE TRANSMISSION MAY LOCK. *RM
SB-3043
MCI: TAG UNLOAD VALVE ASSEMBLY. EFFECTIVE WITH UNIT NUMBER 65614, MCI HAS MADE DESIGN CHANGES TO THE TAG UNLOAD VALVE ASSEMBLY INSTALLATION ON SOME MODEL COACHES. THE LONGER LIFE VALVES WILL IMPROVE THE DURABILITY OF THE TAG UNLOAD VALVE ASSEMBLY. MODELS E4500/J4500 SERIES. NO MODEL YEARS LISTED. *PE
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.