Chevrolet Express 4500

MOTOR HOME / CAMPER BODY. PARKED FOR THE WINTER. PLUGGED IN BUT OCCASIONALLY RUN TO ENSURE BATTERIES ARE CHARGED. VEHICLE HAS 25,400 MILES ON IT. OUTSIDE AIR TEMPERATURE ABOUT 20 F. STARTED VEHICLE AND DASH DISPLAYS WARNINGS: ENGINE OPERATING AT REDUCED POWER AND ENGINE OVERHEATED A/C TURNED OFF. SCANNED THE ECM FOR CODES AND WAS ABLE TO CLEAR THESE TWO MALFUNCTION INDICATORS. THE TOOL ALSO REVEALED A PREMIANT CODE OF P1682 (1/1), IGNITION 1 SWITCH CIRCUIT 2. MODULE # : $7E8 AND MODULE#…

SLOPPY STEERING AND SWAY CONTROL. SINCE NEW. 7000 MILES. SWERVES FROM SIDE TO SIDE. DOES NOT STEER STRAIGHT. OVER CORRECTION.

FUEL TANK RUSTS OUT PREMATURELY AND ALLOWS FUEL TO SPILL OUT ON ROADWAY AND POSSIBLE FIRE HAZARD

UPON INSPECTION, IT WAS NOTICED THAT THE UPPER CONTROL ARM ON THIS AMBULANCE WAS CRACKED WHERE THE TOP OF THE COIL SPRING RESTS.THIS IS ON THE DRIVERS SIDE. THERE ARE CHUNKS OF THE CRADLE MISSING .WE HAVE TAKEN THIS VEHICLE OUT OF SERVICE. THE RIGHT SIDE CRADLE SHOWS NO CRACKING OR FATIGUE.

TL* THE CONTACT OWNS A 2012 CHEVROLET EXPRESS 4500. IN COLD WEATHER, THE DIESEL EXHAUST FLUID (DEF) FROZE, WHICH CAUSED THE VEHICLE TO DECELERATE UNTIL IT EVENTUALLY IDLED. THE DEALER (KUPPER CHEVROLET, 1500 2ND ST NE, MANDON, ND 58554) STATED THAT THEY NEEDED TO KEEP THE VEHICLE IN A HEATED SHOP TO PREVENT THE DEF FROM FREEZING. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS ALSO CONTACTED AND WAS UNABLE TO PROVIDE ASSISTANCE. THE APPROXIMATE FAILURE MILEAGE WAS 86,000. THE VIN WAS…

VEHICLE HAS STALLED BEFORE. SOMETIMES WHEN STARTING JUST SPINS OVER. SOMETIMES STARTS AND SAYS REDUCED ENGINE POWER. RUNS REALLY ROUGH. CAN WAIT ABOUT 10 MINUTES THEN RESTART AND RUNS OK. USUALLY ACTS UP ABOUT EVERY 20 STARTS. THIS IS A 2014 WITH ABOUT 14000 MILES. HAS STALED WHEN BACKING UP BEFORE.

ON 9/30/2016, A THERMAL EVENT OCCURRED WHILE THE BUS WAS IN THE SHOP FOR ROUTINE MAINTENANCE. AS THE BUS WAS BEING MOVED (BACKED-OUT) OF THE SERVICE BAY AND SMOKE WAS SEEN ESCAPING FROM THE CNG TANK STORAGE COMPARTMENT AT THE REAR OF THE BUS. LOCATION: 4127 ELM ST., DALLAS, TX 75226 A DALLAS AREA RAPID TRANSIT (DART) EMPLOYEE QUICKLY OPENED THE COMPARTMENT AND EXTINGUISHED THE SMALL FLAME. DAMAGE WAS LIMITED TO THE CNG FUEL TANK SOLENOID (MELTED) AND THE CONNECTING HARNESS (MELTED). THIS…

UNDER HOOD FUSE 68 (AUX BRAKE LIGHT)P FAILURE. MODIFIED BUS BODY USES THIS AS SOLE BRAKE LIGHT OUTPUT. LOSS OF REAR BRAKE LIGHTS ALMOST RESULTED IN REAR END COLLISION. VEHICLE WAS SLOWING TO STOP FOR A RED LIGHT. VEHICLE NEEDS TWO SOURCES OF BRAKE LIGHT OUTPUT. FUSE PANEL HAS BOTH AVAILABLE WITH FUSING BUT ONLY ONE USED. WE ARE UNABLE TO REPLICATE OR FIND CAUSE OF SHORT.

TRAVELING AT 50 TO 55MPH I MAKE A EASY BRAKE APPLICATION AND THE FRONT WHEELS WILL START OSCILLATING UNTIL THE FRONT GOES INTO A VIOLENT SHAKE. RELEASING THE BRAKE WILL STOP THE SHAKING. THIS IS A CUTAWAY SCHOOL BUS. I'M THE MECHANIC AND THE DRIVER BROUGHT IT TO MY ATTENTION. SHE NOTICED IT WHILE BRAKING ON A DOWNHILL. I WAS ABLE TO DUPLICATE IT ON A LEVEL SURFACE. HAVEN'T FOUND THE FIX YET. *TR

THIS IS A BRAND NEW BUS, GM CHASSIS. IT HAS A LIMITED SLIP DIFFERENTIAL. THE BRAKE LINES ARE ROUTED IN FRONT OF THE REAR DIFFERENTIAL. TWICE, WE HAVE HAD ROCKS HIT THE BRAKE LINE AND SHEER IT OFF CAUSING TOTAL BRAKE FAILURE. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR