LI5427E
Service Bulletin/Repair Instructions
Improved durability of engine-side heat exchanger hoses.
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.
LI5427E
Improved durability of engine-side heat exchanger hoses.
FT5499E
Validation of the previous passenger seat back panel campaign.
BS5467E
Potential presence of a gap may cause frame crack. Only to perform during a frame crack repair process near front bolt of joint #2.
FT4651
Failure of DEF sensor GEN 6 within the expected 5-years lifespan.
LI5228ER2
DEF GEN4 tank, tank head and sensor will no longer be available in service
APS5370E
The Delco-Remy alternator is obsolete. Air cooled ductless (Almott) alternator, power cable and hardware kit to replace the Delco-Remy oil-cooled alternator.
FT5242
ECP radiator failures deemed to be due to overpressure events.
LI5228ER1
DEF tank Head Unit GEN4
LI5228E
DEF tank Head Unit GEN4 N8900882 is no longer available in service, it is replace by the new DEF tank Head Unit GEN5 N8910051
LI5170E
New lower shock mount available with an adapter plate better suited for the front and rear axle.
PC1033
Headlight Failure
PC1025R3
radiator leaking coolant
LI5185E
Cummins has issued a Temporary Repair Practice: TRP2484 â ECM Calibration for DEF Header Sensor Failures due to Parts Shortage TRP allowing temporary calibration of the engine ECM in the event of the DEF sensor failure and repeated error codes.
PC1025R2
Radiator leaking coolant
PC1025R1
Radiator leaking coolant
BS5146E
Engine could crank when fuel door is open
BS4946E
Emergency Engine Stop Override switch on the Operator's Control Panel is missing.
PC1022
DEF level sensor failure
PC1023
DEF level sensor failure
PC1025
Radiator leaking coolant
FT4389R1
ITS Box Shelves Loose
LI4494E
Engine compartment junction block scheduled maintenance. This document is an addendum to Nova Bus Maintenance Manual section 19-401, outlining the need to monitor the condition of junction blocks and correct when required.
LI4995E
Engine compartment junction block scheduled maintenance. This document is an addendum to Nova Bus Maintenance Manual section 19-401, outlining the need to monitor the condition of junction blocks and correct when required.
LI4998ER1
The original production CAC silicone elbow used on the CAC pipe may leak due to insufficient length. A new longer elbow is necessary along with the addition of double clamps.
FT4867R3
Hydraulic Level Sensor Defective, failures or intermittent Low hydraulic light coming on in service. Sensor failing intermittently this is the new stainless steel improved sensor. Replace sensor by Fozmula.
LI3978E
Information about the engine coolant. Coolant types should not be mixed in the engine.
LI5011E
Recommendations on the disinfection of vehicles as well as products and precautions to be taken.
Li4998
The elbow used on the CAC pipes too short and found a leakage, decided to use the double clamp, it was necessary to use the longer elbow in this area.
FT4867R2
Hydraulic level sensor defective
FT4997R1
Passengers seat back cracked inspection
FT4715R1
Passengers Seat Back Cracked
LI4910ER1
High ambient temperature on exhaust side (after-treatment area) may cause Wiring Harness Assembly 64 wires and connectors to become brittle and fail.
LI4695ER1
Auxiliary heater Thermo 300 is discontinued. The Thermo Plus unit will replace the current unit only if the whole unit needs to be replaced. There is no need to retrofit any buses with the new Thermo Plus units. Replacement parts are available for the current Thermo/Thermo-S units already installed.
LI4915E
New style CNG Spheros is not fit, form and function as compared to the old heater.
BS3667ER2
Vertical beam might crack above front door, second post capping. Weld stiffening plates.
FT4926
Drag links found loose after 35 to 45000 ml. Replace drag links.
Ft4867R1
failures or intermittent Low hydraulic light coming on in service. Removal of the Hydraulic Oil Level Sensor.
LI4910E
Under certain condition (high temperature in southern state) combine with the engine compartment high ambient temperature near the exhaust side may cause the exhaust harness wires and connector to become brittle and fail.
BS4864E
Floor damage around the drive shaft access panel
APS4896E
Introduction of a new steering gearbox without the lubrication zerk.
LI4432ER1
TRW has eliminated from service procedure TAS-103 the greasing of the steering gearbox output shaft.
BS4903E
Wheel chair access ramp does not operate under the actual VBEA program.
FT4846
Radiator Canopy Panel Hardware Loose
FT4705R1
Bike Rack Icon not working correctly
FT4805
Delco 450 Amp Alternator internal failure
FT4644
Body corner panel shows cracks
LI4569E
Whenever experiencing multiple random transmission fault codes, it is advisable to inspect the N40216 transmission harness for chafing and, if wiring defects are found, to repair these defects. Note that not all transmission codes are caused by wiring issues
LI4770E
Whenever experiencing multiple random transmission fault codes, it is advisable to inspect the N40216 transmission harness for chafing and, if wiring defects are found, to repair these defects. Note that not all transmission codes are caused by wiring issues
LI4772E
Whenever experiencing multiple random transmission fault codes, it is advisable to inspect the N40216 transmission harness for chafing and, if wiring defects are found, to repair these defects. Note that not all transmission codes are caused by wiring issues
FT4784
Tow eye plugs stuck
LI4774E
Bad torque sequence and engine rail flatness out of tolerance at fuel tank mounts created preload in the chassis leading to premature failure.
FT4487R2
ITS Box Shelves Won't Lock
FT4781
Engine door Hinge becoming loose
BS4630E
When Fast idle is active the engine parameter prevents the engine from doing an active regeneration.
FT4705
Bike Rack Icon not working correctly
LI4718E
A new part kit and work procedure is required to replace the auxiliary heater filter N12950 since the latter has been discontinued by its supplier.
FT4558R2
Niehoff alternator regulator connections failing off CTA
FT4654
CNG Turbo Failure
FT4650R1
Seats rail failure San Antonio Texas - VIA inspection
LI4674E
A new part kit and work procedure is required to replace the auxiliary heater filter N12950 since the latter has been discontinued by its supplier.
FT4715
Seat back panel
FT4565
Cummins code 3568
FT4617
CAN Layer Resets
FT4669
CAN Layer Resets
FT4692
HVAC discharge pipe insulation melting
FT4578
Belt Guard Beam Failure
FT4558R1
Niehoff alternator regulator connections failing off
FT4566R1
Engine Fan Connector hot
FT4652
Seats rail floor failure San Antonio Texas
FT4559R2
Splash Cover NYCT L841 to 845
FT4650
Seats rail failure San Antonio Texas - VIA inspection
APS4528ER1
Availability of a dust protection kit to remove the maintenance need to clean the flame sensor sight glass when excessive soot or debris is accumulated on the internal burner head disc
BS4529ER1
Sight glass for the flame detector could become dirty leading the heater to lock out
FT4487R1
ITS box rail locks are breaking
FT4623
Watch Your Step Decal Peeling
FT4639
Rear axle failure NYCT Inspection Request
FT4640
Seats rail floor failure San Antonio Texas
FT4610R1
Seats rail failure San Antonio Texas
FT4622
Middle coolant sensor replace by a resistor
LI4388ER1
Cummins code 1242 for throttle pedal sensor circuit
LI4642E
Addition of strain relief bracket to secure regulator connections against vibration
LI4577ER1
The repair kit parts will require a specific installation procedure. Current stock parts may still be used
FT4559R1
Splash cover for Sika bead
FT4399
ITS box rail locks are breaking
FT4487
ITS box rail locks are breaking
FT4501R1
Lateral console nameplate cracking Houston Top Nameplate
FT4610
Seats rail failure San Antonio Texas
FT4598
Ramp pump assembly with aluminum reservoir cracking
FT4532
Compartment Door Corrosion
FT4547
Destination Sign Curtains Falling
FT4585
Heat exchanger hose leaking
FT4450
Paint peeling on all panels made of N64030-28
BS4355E
Improper collar installation may cause interference between adjacent parts
FT4515
AC drain tube kazoo/check valve missing
FT4558
Niehoff alternator regulator connections failing off
FT4566
Engine Fan Connector hot
FT4542
Driver Defrost Not Working with High Fan Speed
FT4451
Paint peeling occur on skirt panels and other exterior trim components
FT4505
Driver Partition Legend decal is cracking
FT4519
VBEA Reprogramming for Battery replacement due to low voltage
FT4537
Exhaust Pipe Clamp Loose
FT4564
Infotainment ethernet cables wrong connector
FT4416R2
Plastic fitting for PEX affected by oil leaking from transmission cooler
FT4559
Sika Seams are Cracking, Strip Solution will be introduced in service.
FT4551
Replace the affected Signal and Ground wires by New kit of Kidde.
LI4546E
To avoid the risk of air being trapped which could damage the EGR cooler.
LI4513E
Firmware update to increase the coils lifespan by improving its control.
LI4512E
Brake wear signal reads 0% or fluctuates
LI4394E
A new air dryer inspection procedure will be added to the maintenance and preventive maintenance manual for air dryer system sections,
BS4461E
Canopy door latch might need to be retightened.
LI4407E
A new option is available to ease the removal of the Thermo King AC unit evaporator on CNG vehicles.
BS3626ER2
Cummins code 1242 for accelerator sensors circuit
BS4329E
Plastic stopper strips can detached from the canopy doors.
LI4374ER1
Latch adjustment for the the proper operation of the destination sign doors.
LI4345E
Original valve is discontinued
LI4374E
Latch adjustment for the proper operation of the destination sign doors
LI4156E
The structural integrity of the plastic PEX fittings may be affected if coated with liquid and/or lubricant, which may lead to coolant leaking into the passenger compartment.
LI4182E
Inner slotted nuts may mislocate the wheel bearing assembly.
LI4289ER1
Oil filler tube part number superceeded by improved tube
LI4263ER1
Subject to application and duty cycle, DEF dosing valve can clog up and cause engine to derate, stall, lose power and log FC3568. Increasing dosing valve and DEF hose angle can help reduce such occurrence. Vehicles reporting repetitive FC3568 can be modified according to procedure herein.
BS4243E
Dust hides safety decals on hybrid electric units
LI4263E
Possibility of engine derating, stalling and losing of power
BS4159E
Dust intrusion in baselights area through the structure vertical tubes.
BS4108E
Accumulator solenoid failure resulting in air leakage.
LI3402ER4
Low coolant level sensor warning
LI3402ER3
Low coolant level sensor warning
BS4051ER3
Interlock brake is activated when the B-bus network is disconnected or lost.
BS3887E
Dust cap from PRD vent pipe of rear regulator on CNG units may pull off
LI4114E
Articulation hydraulic cylinder pin is required to be maintained at W2 (60,000mi,100,000Km) maintenance of the articulation system to ease removal at a later time.
BS4045ER2
Heat from a drain on the exhaust may damage the rear left corner panel.
BS4051ER2
Interlock brake is activated when the B-bus network is disconnected or lost.
LI4074E
Improved solution to secure Radiator Canopy Panel hardware
BS4045E
Heat from a drain on the exhaust may damage the rear left corner panel
BS4051E
Interlock brake is activated when the B-bus network is disconnected or lost
BS3717ER1
Flexible bellows N79197 may have an exhaust leak near the rigid exhaust pipe
BS3973E
Valves balancing braking power needs to be updated to meet customer specifications.
BS3968E
Dust intrusion in baselights area through the structure vertical tubes (40' bus)
LI3944E
Engine derating, stalling, and loss of power may occur as a result of code 3568
BS3891E
When the accelerator is suddenly depressed, the alternator voltage momentarily surge well above 32V because the voltage regulator response time is too long.
BS3919E
When the accelerator is suddenly depressed, the alternator voltage momentarily surge well above 32V because the voltage regulator response time is too long.
BS3465ER1
Articulation ACU and solenoid Justify Articulation solenoid circuit may cause an error code in ACU.
BS3749E
CUMMINS COOLANT SENSORS EQUIPPED WITH THE EPC CONNECTORS FAIL IN SERVICE DUE TO WATER INFILTRATION.
LI3788ER1
INTRODUCTION OF NORD-LOCK WASHERS TO FRONT ENGINE MOUNT BOLTS WITH NEW TORQUE SPECIFICATION FOR IMPROVED CLAMPING. (R1 REPHRASED THE DOCUMENT JUSTIFICATION)
li3788er1
Introduction of nord-lock washers to front engine mount bolts with new torque specification for improved clamping. (R1 rephrased the document justification)
bs3749e
Cummins coolant sensors equipped with the EPC connectors fail in service due to water infiltration.
LI3770E
NO ACCESS TO SUSPEND #6 LIFTER. CUT HOLE FOR ACCESS TO #6 CYLINDER EXHAUST LIFTER.
BS3419E
The wiper motor cannot be stopped by the driver.
LI3788E
INTRODUCTION OF NORD-LOCK WASHERS TO FRONT ENGINE MOUNT BOLTS WITH NEW TORQUE SPECIFICATION FOR IMPROVISED CLAMPING.
BS3626ER1
CUMMINS CODE 1242 FOR ACCELERATOR SENSORS CIRCUIT, REPLACE THE THROTTLE PEDAL SENSORS CABLE.
BS3600ER1
THIS COMMUNICATION IS A SERVICE BULLETIN CONCERNING THE FRONT CAMERA UNDER THE DESTINATION SIGN THAT MAY BECOME LOOSE.
BS3785E
CNG FUEL LINE THAT RUNS TO THE SPHEROS AUX HEATER UNIT MAY COME INTO CONTACT WITH THE ENGINE CRADLE AND MAY CAUSE DAMAGE DUE TO CHAFFING.
BS3626E
CUMMINS CODE 1242 FOR ACCELERATOR SENSORS CIRCUIT
LI3723E
THIS COMMUNICATION IS A LETTER OF INFORMATION TO HIGHLIGHT THE ERRONEOUS "DVR NOT OPERATIONAL" AND "ROLL CALL TIMEOUT-CAMERA" FAULTS OF APOLLO SYSTEM.
BS3554ER3
AUXILIARY HEATER INTAKE PIPE MOUNTING BRACKET MIGHT NOT BE ABLE TO WITHSTAND THE VIBRATION INDUCED BY THE BUS FRAME.
BS3554ER1
AUXILIARY HEATER INTAKE PIPE MOUNTING BRACKET MIGHT NOT BE ABLE TO WITHSTAND THE VIBRATION INDUCED BY THE BUS FRAME.
bs3270e
Unable to perform stationary regeneration.
BS3270E
Regeneration system on hybrid articulated vehicles
LI3188
A new radius rod bolt torque is now in effect.
LI3045E
Coolant filter additive free N71764 installed in production since august 2013
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.