1999 Blue Bird TC2000

CERTAIN 1998 THROUGH 2002 BLUE BIRD ALL AMERICAN, TC2000 SCHOOL AND TRANSIT BUSES, AND COMMERCIAL SERIES BUSES EQUIPPED WITH CUMMINS ISB DIESEL ENGINES. THE FUEL PUMP COULD FAIL TO TRANSFER FUEL APPROPRIATELY CREATING AN ENGINE STALL CONDITION.

CERTAIN SCHOOL BUSES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 221, "SCHOOL BUS BODY JOINT STRENGTH." ONE OR MORE OF THE BOLTS ATTACHING THE DRIVER'S PLATFORM TO THE FLOOR STRUCTURE WAS OMITTED.

ON CERTAIN SCHOOL AND TRANSIT BUSES EQUIPPED WITH CUMMINS ISB 6 CYLINDER ENGINES, THE LOWER ALTERNATOR SUPPORT BRACE OR MOUNTING HARDWARE CAN LOOSEN OR BREAK WHICH WILL ALLOW THE ALTERNATOR TO DROP ONTO THE ENGINE.

CERTAIN TRANSIT BUSES FAIL TO COMPLY WITH REQUIREMENTS OF FEDERAL MOTOR VEHICLE STANDARD NO. 101, "CONTROLS AND DISPLAYS." THIS STANDARD REQUIRES SPECIFIC LABELING FOR "ENGINE START" AND "ENGINE STOP." THE WORDING OF THE LABELS ON THESE VEHICLES DO NOT MEET THE REQUIREMENTS OF THE STANDARD.

VEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH HENDRICKSON REAR AIR SUSPENSION. INADEQUATE TIGHTENING OF THE 5/8" BOLTS ON THE REAR AIR SUSPENSION HANGER BOLTS AND ON REAR AXLE TORQUE ARM AXLE SEAT STUDS.

VEHICLE DESCRIPTION: SCHOOL AND TRANSIT BUSES EQUIPPED WITH REAR MOUNTED ENGINES. THE 12-VOLT POWER SUPPLY CABLE(S) MAY BE CHAFFED BY HOSES, HARNESSES, FRAME COMPONENTS, OR CLAMPS.

VEHICLE DESCRIPTION: SCHOOL AND TRANSIT BUSES AND MOTOR HOME CHASSIS EQUIPPED WITH TIE ROD ASSEMBLIES MANUFACTURED BY TRW. THE SUSPECT TIE RODS CONTAIN 24-DL MODEL BALL SOCKETS. CERTAIN OF THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW-SPECIFICATION CASE DEPTH AND/OR HARDNESS, WHICH CAN LEAD TO PREMATURE WEAR OF THE SOCKET.

VEHICLE DESCRIPTION: TRANSIT AND SCHOOL BUSES EQUIPPED WITH MERITOR WABCO PHASE 1, D-VERSION ANTILOCK BRAKE SYSTEM (ABS), FAIL TO COMPLY TO THE REQUIREMENTS OF FMVSS NO. 105, "HYDRAULIC AND ELECTRIC BRAKE SYSTEMS." AN INTERNAL DIAGNOSTIC SYSTEM IN THE ABS MAY NOT DETECT AN EXTREME WHEEL SPEED SENSOR AIR GAP. SUCH A CONDITION COULD POSSIBLY OCCUR DURING (1) ORIGINAL ASSEMBLY OR (2) SUBSEQUENT WHEEL END SERVICE.

VEHICLE DESCRIPTION: SCHOOL AND TRANSIT BUSES BUILT WITH BENDIX AIR ABS WITH AN EC-17 1030R ELECTRONIC CONTROL UNIT (ECU), THERE HAVE BEEN REPORTS OF UNWANTED ABS ACTIVATION AT LOW SPEEDS CAUSED BY 1) CHAFED ABS WHEEL SPEED SENSOR WIRES ON ROTATING PARTS OR 2) A DAMAGED COMPONENT AT THE WHEEL END THAT GENERATES A CERTAIN TYPE OF ERRATIC SENSOR SIGNAL.

VEHICLE DESCRIPTION: SCHOOL BUSES. THESE BUSES FAIL TO MEET THE 60 PERCENT JOINT STRENGTH REQUIREMENTS OF FMVSS NO. 221, "SCHOOL BUS BODY JOINT STRENGTH."

VEHICLE DESCRIPTION: SCHOOL AND TRANSIT BUSES EQUIPPED WITH ELECTRONIC ENGINES AND FELSTED ELECTRONIC ACCELERATOR PEDALS. THE RETURN SPRINGS CAN BREAK ON THE ACCELERATOR PEDALS THAT ARE EQUIPPED WITH STAINLESS STEEL OR ELECTROPLATED MUSIC WIRE RETURN SPRINGS.

VEHICLE DESCRIPTION: SCHOOL AND TRANSIT BUSES EQUIPPED WITH BENDIX AIR BRAKES. BENDIX CHANGED THE INTERNAL DESIGN OF THE QR1C RELAY VALVE BY ADDING A HOLE IN THE INTERNAL DIAPHRAGM. WHEN THE HOLE IN THE DIAPHRAGM ALIGNS WITH THE HOLE IN THE VALVE BODY, THE BRAKE APPLICATION TIME INCREASES.

VEHICLE DESCRIPTION: SCHOOL AND TRANSIT BUSES EQUIPPED WITH BENDIX ABS ANTI-LOCK BRAKING SYSTEM. THE PRIMARY AND SECONDARY BRAKE TREADLE VALVE AIR LINES WERE INSTALLED INCORRECTLY AT THE BENDIX R12DC RELAY VALVE.

VEHICLE DESCRIPTION: SCHOOL BUSES. THERE IS A SHIMMY IN THE FRONT END OF THE BUS.

VEHICLE DESCRIPTION: SCHOOL BUSES. THE WALL SIDE ATTACHING BOLTS FOR SOME OF THE PASSENGER SEATS MAY HAVE BEEN INSTALLED TOO CLOSE TO THE EDGE OF THE SEAT LEDGE AND IN THE WRONG ATTACHING HOLE RESULTING IN WEAKENING OF THE SEAT LEDGE AT THE ATTACHMENT POINTS.