Orion Vi — Other
High risk
Nov 2, 2010
Model years: 1996, 1997, 1998, 1999
On certain buses, a fitting (connected to the hydraulic pump) with an adapter for the wheelchair ramp, could crack and cause hydraulic fluid to leak into the engine compartment. A
Orion Vi — Engine
High risk
Jan 14, 2010
Model years: 1997, 1998, 1999, 2000
On certain buses, should the switch on the remote throttle control panel (located in the engine compartment) not be returned to the "OFF" or "FRONT" position by a servicing technic
Also affects: Orion Ii, Orion V, Orion Vii
Orion Vi — Engine
High risk
Jan 29, 2005
Model years: 1997, 1998, 1999
On certain buses equipped with Detroit Diesel series 50 engines, the turbocharger can fail, allowing lubricating oil to enter the exhaust system. This can result in an engine compa
Also affects: Orion V
Orion Vi — Engine
High risk
Apr 7, 2004
Model years: 1997, 1998, 1999
On certain buses equipped with Cummins Electronic Control Modules (ECM) on the L10G engines, the ECM does not have the ability to detect a throttle fail-safe engine shutdown comman
Orion Vi — Other
High risk
Jun 12, 2003
Model years: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
On certain vehicles, the red handles on the emergency windows may require excessive pull force in order to release the window in the event of an emergency, increasing the risk of p
Also affects: Orion Ii, Orion V
Orion Vi — Other
High risk
Jan 27, 2003
Model years: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
On certain vehicles equipped with a Detroit Diesel S-50 engine, the fitting for the high pressure hydraulic cooling fan hose could separate from the cooling fan motor. Correction:
Orion Vi — Steering
High risk
Nov 25, 2002
Model years: 1999, 2000
On certain vehicles equipped with TRW 24-DL socket assemblies. Certain drag links and front axle tie rods may contain bearing surfaces that have a less than specified case depth an
Orion Vi — Structure
High risk
May 9, 2002
Model years: 1998, 1999, 2000
On certain vehicles the doors supplied by Vapor Corp. of Niles IL, may experience a separation of the door skin from the door frame. Separation or delamination of the door skin may
Also affects: Orion V
Orion Vi — Electrical
High risk
Feb 8, 2001
Model years: 1998, 1999, 2000
Certain vehicles are equipped with Vanner 60 Series12/24 volt battery equalizers which may fail in the field without warning. The bus maybe parked with the engine turned off or whi
Also affects: Orion V
Orion Vi — Steering
High risk
Jan 11, 1999
Model years: 1996, 1997, 1998
On certain vehicles, the case steel roadside steering arms may fail without warning due to casting vatiances. The failure of this steering arm leaves the bus with no steering contr
Orion Vi — Seats And Restraints
High risk
Oct 15, 1998
Model years: 1997, 1998
On certain vehicles equipped with wheelchair barriers, in the event of a frontal crash at more than 20 mph, the wheelchair barrier attaching bolts which are tapped into the floor s
Also affects: Orion V
Orion Vi — Brakes
High risk
Jul 20, 1998
Model years: 1997, 1998
NOTE: TRANSIT BUSES EQUIPPED WITH ZF FRONT AXLES AND LUCAS DISC BRAKES. THE BRAKE LEVER CONNECTING THE BRAKE CHAMBER PUSHROD TO THE DISC BRAKE ACTUATOR CAN JAM AGAINST THE AIR BAG
Orion Vi — Heater And Defroster
High risk
May 28, 1998
Model years: 1997, 1998
NOTE: TRANSIT BUSES EQUIPPED WITH PROHEAT BRAVO XL2400 AUXILIARY HEATERS. THESE HEATERS HAVE A FUEL REGULATOR WHICH HAS NOT BEEN ASSEMBLED CORRECTLY AND ALLOWS THE HEATER TO OVER F
Also affects: Orion V
Orion Vi — Brakes
High risk
Apr 20, 1998
Model years: 1996, 1997, 1998
NOTE: VEHICLES EQUIPPED WITH MIDLAND BRAKE MAXIBRAKE 1 BRAKE CHAMBERS. THESE VEHICLES DO NOT COMPLY WITH C.M.V.S.S. 121 - AIR BRAKE SYSTEMS. THE BRAKE CHAMBERS DO NOT HAVE STROKE I
Also affects: Orion V
Orion Vi — Steering
High risk
Aug 28, 1997
Model years: 1996, 1997
NOTE: LOW FLOOR BUSES. THE DRIVER'S SIDE STEERING RELAY ARMS ON THESE VEHICLES MAY FRACTURE AND FAIL. THIS WOULD RESULT IN LOSS OF STEERING CONTROL AND A CRASH WITHOUT PRIOR WARNIN
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