2005 Mack CV problems

What is wrong

Mack is recalling 10,300 model year 2004 and 2005 cl, cv, dm, le, and rb and model year 2004 rd heavy trucks manufactured from october 1, 2003 through september 30, 2004, equipped with axle beams manufactured by bharat forge. The axle beam may have transverse shear lines on the bottom of the axle from the trimming process.

Risk

These lines, if present, can promote initiation of cracks, which over time may possibly lead to axle beam failure and a vehicle crash can occur.

Remedy

Mack will notify owners, inspect and replace any affected axle beams free of charge. The safety recall began on august 14, 2009. Owners may contact mack at 1‑800‑866‑1177.

Recall number 09V240000 · Recall details

What is wrong

On certain trucks equipped with parker single check valves (scv) provided by bendix. The defect exists in the parker scv that connects with the supply port of the sr-7 spring brake modulating valve. After prolonged use of the parker scv, the valve body retainer may become excessively worn and eventually 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.

Risk

This condition can cause a delay in the application of the spring brakes to park the vehicle after the operator pulls the dash valve button. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in the case of loss of primary circuit, inability to modulate the spring brakes.

Remedy

Mack is working with bendix to replace the parker single check valve. The recall began on january 9, 2008. Owners may contact bendix at 1‑440‑329‑9000 or mack at 1‑800‑528‑6586.

Recall number 07V361000 · Recall details

What is wrong

Certain trucks equipped with a front glad hand option fail to comply with the performance criteria requirements of federal motor vehicle safety standard no. 121, 'air brake systems.'

Risk

The purpose of this standard is to insure safe braking performance under normal and emergency conditions.

Remedy

Dealers will replace the spring brake modulating valve free of charge. The recall began on october 16, 2006. Owners may contact mack truck at 1‑800‑528‑6586.

Recall number 06V319000 · Recall details

What is wrong

On certain heavy duty class 8 trucks equipped with holland air suspension systems, a transverse beam casting may fracture under normal loads. If a casting breaks when the vehicle is traveling on a roadway there is the potential for pieces of the casting to become projectiles and the suspension's transverse beam may drop down low enough to contact the road surface.

Risk

This will cause sparks that could potentially ignite and cause a fire.

Remedy

Dealers will inspect and replace the defective transverse beam assemblies. The recall began on august 19, 2005. Owners may contact mack trucks at 610‑709‑2131.

Recall number 05V312000 · Recall details

Investigation has not identified a defect.complaints have abated.see closing report for further details.

EA09009

Odi is closing this preliminary evaluation and opening an engineering analysis (ea09-009) to further identify and evaluate the vehicle environment and brake system factors that may be causing or contributing to extended stopping distance perfromance in certain vehicles.

PE09010