Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 883 bulletins for NOVA BUS
FT4949
Jan 13, 2021
110000 ELECTRICAL SYSTEM
Throttle pedal not responding with Check Engine Light (CEL) turned on. Out Of Service (OOS) reports are issued with the Cummins 1242 Fault Codes (FC) recorded in the ECM, along with other Throttle Pedal Signal (TPS) codes.
LI4940ER1
Dec 16, 2020
110000 ELECTRICAL SYSTEM
Water Intrusion in Rear Interior Electrical Compartment. From the exterior of the bus, it appears there is a gap between seal and the bus body.
LI4957E
Dec 2, 2020
070000 FUEL SYSTEM, GASOLINE
The auxiliary heater fuel filter is now obsolete. The fuel filter and its support will have to be replaced at its next maintenance.
LI4956E
Dec 2, 2020
070000 FUEL SYSTEM, GASOLINE
The auxiliary heater fuel filter is now obsolete. The fuel filter and its support will have to be replaced at its next maintenance.
LI4955E
Dec 2, 2020
070000 FUEL SYSTEM, GASOLINE
The auxiliary heater fuel filter is now obsolete. The fuel filter and its support will have to be replaced at its next maintenance.
LI4909ER1
Dec 2, 2020
070000 FUEL SYSTEM, GASOLINE
High ambient temperature on exhaust side (after-treatment area) may cause Wiring Harness Assembly 64 wires and connectors to become brittle and fail.
LI4910ER1
Dec 2, 2020
110000 ELECTRICAL SYSTEM
High ambient temperature on exhaust side (after-treatment area) may cause Wiring Harness Assembly 64 wires and connectors to become brittle and fail.
LI4967ER1
Oct 19, 2020
350000 EQUIPMENT
Auxiliary heater Thermo 350 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 availa
LI4968ER1
Oct 19, 2020
350000 EQUIPMENT
Auxiliary heater Thermo 350 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 availa
LI4696ER1
Oct 13, 2020
110000 ELECTRICAL SYSTEM
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 availa
LI4695ER1
Oct 5, 2020
110000 ELECTRICAL SYSTEM
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 availa
LI4915E
Oct 5, 2020
350000 EQUIPMENT
New style CNG Spheros is not fit, form and function as compared to the old heater.
BS3667ER2
Sep 4, 2020
160000 STRUCTURE
Vertical beam might crack above front door, second post capping. Weld stiffening plates.
BS4934E
Sep 2, 2020
060000 ENGINE AND ENGINE COOLING
CAC elbow hose failures. Fiber material should be Woven Aramid Fabric, but some parts have knitted Aramid. Installation of new elbow.
LI4940E
Aug 31, 2020
132000 VISIBILITY:GLASS, SIDE/REAR
Water Intrusion in Rear Interior Electrical Compartment. From the exterior of the bus, it appears there is a gap between seal and the bus body.Applying of Sealant on the rear exterior window
FT4935
Aug 28, 2020
350000 EQUIPMENT
The VIP relay is part of the radio control system.Buses are out of service due to radio not working or p/a not working.
FT4929
Aug 21, 2020
040000 SERVICE BRAKES, AIR
Curb side front wheel air brake hose rubbing the inside of the wheel. FT4929 to inspect and fix buses.
FT4926
Aug 21, 2020
010000 STEERING
Drag links found loose after 35 to 45000 ml. Replace drag links.