ON CERTAIN MOTOR HOMES BUILT WITH CUMMINS ISL CM850 DIESEL ENGINES, THE CONNECTING ROD CONTAINS A MACHINING DEFECT IN THE WRIST PIN BUSHING OF THE ROD THAT COULD CAUSE A SEIZURE OF THE PISTON PIN.
Consequence & remedy
Consequence: IF ALLOWED TO PROGRESS, THIS CAN LEAD TO ENGINE FAILURE WITH THE POSSIBILITY OF THE ROD RUPTURING THE LOCK CAVITY, OIL AND DEBRIS ON THE ROADWAY AND VEHICLE CRASH.
Remedy: FREIGHTLINER IS WORKING WITH CUMMINS TO RECALIBRATE THE ENGINE CONTROL MODULE AND ENHANCE THE ENGINE PROTECTION SYSTEM ENABLING IT TO PROVIDE EARLY DETECTION OF THE FAILURE MODE AND AVOID MORE SERIOUS ENGINE DAMAGE AND RESULTANT SAFETY HAZARD. CUMMINS WILL ALSO INSTALL A NEW VALVE COVER WITH A CRANKCASE PRESSURE SENSOR FREE OF CHARGE (PLEASE SEE 07E033). OWNERS MAY CONTACT CUMMINS AT 800-343-7357 OR FREIGHTLINER AT 1-800-547-0712.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1
EQ08008 · Freightliner Aac Axle Steering Bolts
Opened May 27, 2008 · Closed Aug 25, 2008
Status: closed (inferred from source dates) · Power Train:axle Assembly
ON 7/3/07 FREIGHTLINER LLC FILED A 573 DEFECT REPORT STATING CERTAIN FREIGHTLINER PRODUCED CHASSIS CONTAINED AAC AXLE STEERING ARM BOLTS CONTAIN A LATCH LEVER PIVOT BOLT ASSEMBLY THAT MAY HAVE BEEN OVER-TIGHTENED.OVER-TIGHTENED STEERING ARM BOLTS MAY FATIGUE AND FRACTURE. SHOULD THESE BOLTS BREAK APART, STEERING LOSS IS POSSIBLE LEADING TO LOSS OF VEHICLE CONTROL AND A CRASH.RMD MAILED INFORMATION REQUEST LETTERS TO 7 VEHICLE MANUFACTURERS ON 6/24/2008.GULF STREAM COACH & TIFFIN MOTORHOMES FILED 573 DEFECT INFORMATION REPORTS, 08V-354 AND 08V-393, RESPECTIVELY.4 OEMS, DOUBLE K, GLAVAL BUS, MORGAN OLSON, & UTILIMASTER CORP., SUPPLIED MAKE/MODEL INFORMATION.SUPREME CORP'S INVENTORY WAS RETURNED TO ANOTHER PARTY AS A MODIFICATION DEAL FELL THROUGH AND NO WORK WAS PERFORMED ON THE CHASSIS.OWNER INFORMATION WAS FORWARDED TO FREIGHTLINER SO A NOTIFICATION CAN BE MAILED TO THAT CUSTOMER.THIS EQ IS CLOSED.IR RESPONSES CAN BE FOUND BELOW OR IN THE DOCUMENT REPOSITORY.
Additional source detail variants (2)
Power Train:axle Assembly
ON 7/3/07 FREIGHTLINER LLC FILED A 573 DEFECT REPORT STATING CERTAIN FREIGHTLINER PRODUCED CHASSIS CONTAINED AAC AXLE STEERING ARM BOLTS CONTAIN A LATCH LEVER PIVOT BOLT ASSEMBLY THAT MAY HAVE BEEN OVER-TIGHTENED.OVER-TIGHTENED STEERING ARM BOLTS MAY FATIGUE AND FRACTURE. SHOULD THESE BOLTS BREAK APART, STEERING LOSS IS POSSIBLE LEADING TO LOSS OF VEHICLE CONTROL AND A CRASH.RMD MAILED INFORMATION REQUEST LETTERS TO 7 VEHICLE MANUFACTURERS ON 6/24/2008.GULF STREAM COACH & TIFFIN MOTORHOMES FILED 573 DEFECT INFORMATION REPORTS, 08V-354 AND 08V-393, RESPECTIVELY.4 OEMS, DOUBLE K, GLAVAL BUS, MORGAN OLSON, & UTILIMASTER CORP., SUPPLIED MAKE/MODEL INFORMATION.SUPREME CORP'S INVENTORY WAS RETURNED TO ANOTHER PARTY AS A MODIFICATION DEAL FELL THROUGH AND NO WORK WAS PERFORMED ON THE CHASSIS.OWNER INFORMATION WAS FORWARDED TO FREIGHTLINER SO A NOTIFICATION CAN BE MAILED TO THAT CUSTOMER.THIS EQ IS CLOSED.IR RESPONSES CAN BE FOUND BELOW OR IN THE DOCUMENT REPOSITORY.
Power Train:axle Assembly
ON 7/3/07 FREIGHTLINER LLC FILED A 573 DEFECT REPORT STATING CERTAIN FREIGHTLINER PRODUCED CHASSIS CONTAINED AAC AXLE STEERING ARM BOLTS CONTAIN A LATCH LEVER PIVOT BOLT ASSEMBLY THAT MAY HAVE BEEN OVER-TIGHTENED.OVER-TIGHTENED STEERING ARM BOLTS MAY FATIGUE AND FRACTURE. SHOULD THESE BOLTS BREAK APART, STEERING LOSS IS POSSIBLE LEADING TO LOSS OF VEHICLE CONTROL AND A CRASH.RMD MAILED INFORMATION REQUEST LETTERS TO 7 VEHICLE MANUFACTURERS ON 6/24/2008.GULF STREAM COACH & TIFFIN MOTORHOMES FILED 573 DEFECT INFORMATION REPORTS, 08V-354 AND 08V-393, RESPECTIVELY.4 OEMS, DOUBLE K, GLAVAL BUS, MORGAN OLSON, & UTILIMASTER CORP., SUPPLIED MAKE/MODEL INFORMATION.SUPREME CORP'S INVENTORY WAS RETURNED TO ANOTHER PARTY AS A MODIFICATION DEAL FELL THROUGH AND NO WORK WAS PERFORMED ON THE CHASSIS.OWNER INFORMATION WAS FORWARDED TO FREIGHTLINER SO A NOTIFICATION CAN BE MAILED TO THAT CUSTOMER.THIS EQ IS CLOSED.IR RESPONSES CAN BE FOUND BELOW OR IN THE DOCUMENT REPOSITORY.
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