2007 Freightliner MT55 problems

What is wrong

Certain freightliner school bus chassis, heavy trucks, and thomas built school buses manufactured between july 2002 and july 3, 2007, equipped with bendix sr-7 spring brake control valves. The parker scv brass 90 degree single check valves (scv) which attach to the supply port of a bendix sr-7 spring brake modulating valve can break apart. Pieces of the parker scv can become lodged inside the sr-7 spring brake modulating valve, potentially causing either leakage out of the sr-7 valve or preventing air from properly exhausting from the sr-7 valve. Also, due to a manufacturing defect in the internal rubber check valve inside the sr-7 spring brake modulating valves, the valves can become deformed and not seat properly.

Risk

These conditions could either result in leakage and cause a delay in the application of the spring brake without warning or possibly lead to unintended vehicle rollaway or brake drag which could result in a vehicle crash, personal injury, or death.

Remedy

Freightliner will notify owners and repair the vehicles free of charge. The recall began on january 11, 2008 to freightliner, sterling, and freightliner custom chassis owners; to thomas built bus owners on february 1, 2008. Owners can contact freightliner at 1‑800‑547‑0712.

Recall number 07V302000 · Recall details

What is wrong

On certain walk-in vans, the stop lamps may be intermittent during light brake applications. The cruise control may not immediately deactivate when the service brakes are applied.

Risk

The stop lamps may not properly indicate that the service brakes are applied. The cruise control may not immediately deactivate when the service brakes are applied. Either condition may lead to a crash without prior warning.

Remedy

Dealers will replace the switch with one having a lower application load rating free of charge. The recall began on january 24, 2007. Owners may contact freightliner at 1‑800‑547‑0712.

Recall number 06V321000 · Recall details

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.

EQ08008