The defect
ON CERTAIN TRUCKS, EQUIPPED WITH A FULL AIR BRAKE SYSTEM, THERE MAY BE 3 POSSIBLE DEFECTS RELATED TO THE PARKING BRAKE CHAMBER PORTION OF THE AIR BRAKE CHAMBER ASSEMBLY. THEY ARE AS FOLLOWS: (1) DUE TO IMPROPER INSTALLATION OF THE PARKING BRAKE CHAMBER END CAP DURING ASSEMBLY, WATER MAY ENTER THE PARKING BRAKE CHAMBER, CAUSING CORROSION OF THE POWER SPRING, LEADING TO POSSIBLE SPRING FAILURE. IN THE WORST CASE, RESULTANT DAMAGE COULD CAUSE THE PARKING BRAKE TO ENGAGE WHILE THE PARKING BRAKE LEVER IS IN THE RELEASED (OFF) POSITION. (2) DUE TO IMPROPER END CAP ATTACHING SCREW DIMENSIONS, WATER MAY ENTER THE PARKING BRAKE CHAMBER, CAUSING CORROSION OF THE POWER SPRING, LEADING TO POSSIBLE SPRING FAILURE. IN THE WORST CASE, RESULTANT DAMAGE COULD CAUSE THE PARKING BRAKE TO ENGAGE WHILE THE PARKING BRAKE LEVER IS IN THE RELEASED (OFF) POSITION. (3) DUE TO IMPROPER TIGHTENING OF THE END CAP ATTACHING SCREW DURING ASSEMBLY, WATER MAY ENTER INTO THE PARKING BRAKE CHAMBER, CAUSING CORROSION OF THE POWER SPRING, LEADING TO POSSIBLE SPRING FAILURE. IN THE WORST CASE, RESULTANT DAMAGE COULD CAUSE THE PARKING BRAKE TO ENGAGE WHILE THE PARKING BRAKE LEVER IS IN THE RELEASED (OFF) POSITION.
The risk
CONTINUED OPERATION IN THIS CONDITION COULD CAUSE CORROSION OF THE POWER SPRING IN THE PARKING BRAKE CHAMBER, LEADING TO POSSIBLE SPRING FAILURE. IN THE WORST CASE, RESULTANT DAMAGE COULD CAUSE THE PARKING BRAKE TO ENGAGE WHILE THE PARKING BRAKE LEVER IS IN THE RELEASED (OFF) POSITION AND THE VEHICLE COULD CRASH WITHOUT WARNING.
The remedy
DEALERS WILL FOR ITEM (1) ABOVE, INSPECT THE PARKING BRAKE CHAMBER. THE END CAP WILL BE REPLACED WITH A MODIFIED PART. IF CORROSION IS FOUND INSIDE OF THE CHAMBER, OR ON THE POWER SPRING, THE PARKING BRAKE CHAMBER WILL BE REPLACED. FOR ITEMS 2 AND 3, THE DEALER WILL CHECK THE MANUFACTURER IDENTIFICATION MARK ON PARKING BRAKE CHAMBER. IF MGM IS STAMPED ON THE CHAMBER, IT WILL BE INSPECTED AND THEN ADHESIVE WILL BE APPLIED TO THE END CAP ATTACHING SCREW ON THESE UNITS. IF CORROSION IS FOUND INSIDE OF THE BRAKE CHAMBER OR ON THE POWER SPRING, THE PARKING BRAKE CHAMBER WILL BE REPLACED. THE RECALL BEGAN ON NOVEMBER 9, 2006. OWNERS MAY CONTACT MITSUBISHI FUSO AT 1-856-467-4500.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mitsubishi Fuso FM657 | 2001, 2002, 2003, 2004 |
Components: PARKING BRAKE:CONVENTIONAL:AIR
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mitsubishi Fuso FM657 | 2001 | 0 | 3 |
| Mitsubishi Fuso FM657 | 2002 | 0 | 3 |
| Mitsubishi Fuso FM657 | 2003 | 0 | 3 |
| Mitsubishi Fuso FM657 | 2004 | 0 | 4 |
Other parking brake recalls in 2006
11 of the 490 recall campaigns reported to NHTSA in 2006 concerned the parking brake; MITSUBISHI FUSO TRUCK OF AMERICA, INC. filed 30 campaigns in all.
| 06V436000 9 Nov 2006 | HINO MOTORS SALES U.S.A., INC. |
| 06V254000 13 Jul 2006 | GENERAL MOTORS CORP. |
| 06V243000 11 Jul 2006 | PREVOST CARS, INC. |
| 06V232000 28 Jun 2006 | MACK TRUCKS, INC |
| 06V231000 28 Jun 2006 | INTERNATIONAL TRUCK & ENGINE CORPORATION |
| 06V221000 19 Jun 2006 | OSHKOSH TRUCK CORPORATION |
| 06V205000 12 Jun 2006 | FREIGHTLINER LLC |
| 06V202000 8 Jun 2006 | BLUE BIRD BODY COMPANY |
NHTSA recalls (public domain) · all recalls of 2006