Mack CL recalls

What is wrong

Mack trucks is recalling certain model year 2002 through 2004 cl, cv, le, mr, rb, rd, and model year 2003 through 2004 dm heavy trucks manufactured from february 1, 2002 through september 30, 2003, 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 march 5, 2010. Owners may contact mack at 1‑800‑866‑1177.

Recall number 10V069000 · Recall details

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 a saf holland simplex fifth wheel, the lever arm pivot bolt may have been over tightened. An over tightened pivot bolt can distort the pivot bolt spacer sleeve, which may prevent the fifth wheel latch jaw from closing and latching securely around the trailer king pin.

Risk

There is a possibility that the pivot bolt can become loose without the driver's knowledge. When this occurs, the driver could drive away and the trailer could become disengaged, increasing the risk of a crash.

Remedy

Dealers will replace the pivot bolt and sleeve with a hex head shoulder bolt and washer free of charge. The recall began on january 28, 2008. Owners may contact mack trucks at 1‑800‑528‑6586.

Recall number 07V497000 · Recall details

What is wrong

On certain trucks equipped with a 46k pound chalmers rear suspension, the adjustable torque rods used on the suspension may be brittle.

Risk

This may lead to a premature failure of the rod, which may result in a loss of control of the vehicle increasing the risk of a crash.

Remedy

Dealers will inspect and repair the rods as required free of charge. The recall began on march 14, 2007. Owners may contact mack trucks at 1‑800‑528‑6586.

Recall number 07V053000 · Recall details

What is wrong

On certain trucks equipped with a legris air manifold, the brass push-to-connect cartridge may unexpectedly separate from the plastic housing.

Risk

If the push-to-connect cartridge that supplies the air to the park brake chambers were to separate, then the brakes could unexpectedly apply increasing the risk of a crash.

Remedy

Dealers will replace the air manifold free of charge. The recall began on september 27, 2006. Owners may contact mack trucks at 1‑800‑528‑6586.

Recall number 06V271000 · Recall details

What is wrong

On certain heavy duty class 8 trucks, the bolts that attach the steering gear to the frame may not be tightened properly.

Risk

This may affect the performance of the steering which may result in a vehicle crash.

Remedy

Dealers will check the torque on the bolts that attach the steering gear to the frame and tighten the bolts properly. The recall began august 18, 2005. Owners may contact mack at 1‑800‑528‑6586.

Recall number 05V348000 · 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

What is wrong

On certain class 8 chassis built with hendrickson lift axles which contained webb brake drums, the brake drums could experience premature crack of the braking surface resulting in reduction or complete loss of braking on that wheel end or loss of brake drum pieces.

Risk

Loss of braking ability could result in a vehicle crash, possibly causing injuries or death.

Remedy

Webb wheel is conducting the owner notification and remedy for this campaign. Webb will notify customers, inspect the brake drums and replace any drums that fail inspection. Owners should contact webb at 1‑800‑633‑3256 or mack at 1‑610‑709‑3337.

Recall number 04V258000 · Recall details

What is wrong

Certain heavy duty vehicles fail to comply with the requirements of federal motor vehicle safety standard no. 121, "air brake systems." improper seating of the check valve retainer in the brass fitting housing has occurred. It is possible for the air brake system pressure to push the check valve internal parts into the primary system reservoir and a vehicle operator would not know that this has happened.

Risk

In this condition, the vehicle would not meet the emergency requirements of the standard.

Remedy

Dealers will replace the check valve. Owner notification began november 26, 2003. Owners should contact mack at 1‑610‑709‑3337.

Recall number 03V253000 · Recall details

What is wrong

On some heavy duty class 8 vehicles equipped with arvinmeritor axle assemblies which may have been manufactured with trw model 20edl ball sockets, the tie rod ball-socket bearings have a below specification case depth and/or hardness which can lead to premature wear out of the socket in some applications.

Risk

If this condition occurs, the driver can lose steering control, possibly resulting in a vehicle crash.

Remedy

Dealers will replace the ball socket assemblies. This campaign will supersede the federal safety agency recall nos. 01v‑140-005 (mack sc0270) and 00v‑246-103 (mack sc0262). Owner notification began december 27, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 610‑709‑3337.

Recall number 02V037006 · Recall details

What is wrong

On certain heavy duty trucks equipped with dana spicer tandem drive axle models ds463, an undersized attachment weld may fracture without warning.

Risk

The loss of this attachment to the vehicle chassis can adversely affect vehicle handling or driver control.

Remedy

The dealers will remove the suspect bracket, inspect the axle housing, and reweld the bracket to the axle housing. Owner notification began april 22, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 610‑709‑3337.

Recall number 02V061002 · Recall details

What is wrong

Vehicle description: trucks equipped with e-tech engines. A condition exists on the auxiliary drive shaft of the e-tech engine that causes the loss of power steering on vehicles where the power steering pump is mounted off the front of the engine.

Risk

This could result in the loss of power steering.

Remedy

Dealers will inspect the vehicles and replace the nut that holds the gear to the auxiliary drive shaft. Owner notification began march 22, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1‑610‑709‑3011.

Recall number 01V389000 · Recall details

What is wrong

Vehicle description: heavy duty trucks equipped with certain meritor-wabco brake system two and four port relay valves. The valve may stick open when a high-pressure application is released.

Risk

When the valve sticks open, it can result in a total loss of air from either the service or the park brake system. The driver may lose braking ability under a service application, possibly resulting in a vehicle crash.

Remedy

Dealers will replace these valves. Owner notification began november 16, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1‑610‑709‑3011 or meritor wabco at 800‑535‑5560.

Recall number 01V189004 · Recall details

What is wrong

Vehicle description: heavy duty trucks equipped with drag link assemblies containing 24-dl model ball sockets and manufactured by trw. Certain of the tie rod ball-socket bearings have a below-specification case depth and/or hardness, which can lead to premature wear of the socket.

Risk

If this condition occurs, the driver can lose partial control of the right front wheel, possibly resulting in a crash.

Remedy

Dealers will replace the defective drag links. Owner/distributor notification began august 30, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1‑610‑709‑3011 or trw customer service at 1‑866‑280‑3287.

Recall number 01V044207 · Recall details

What is wrong

Vehicle description: heavy duty trucks equipped with tie rod assemblies containing 24-dl model ball sockets and manufactured by trw. Certain of the tie rod ball-socket bearings have a below-specification case depth and/or hardness, which can lead to premature wear of the socket.

Risk

If this condition occurs, the driver can lose partial control of the right front wheel, possibly resulting in a crash.

Remedy

Dealers will replace the defective tie rods. Owner notification began july 13, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1‑610‑709‑3011 or trw customer service at 1‑866‑280‑3287.

Recall number 01V044107 · Recall details

What is wrong

Vehicle description: heavy duty trucks equipped with trw tie rod ends on certain meritor axles. The tie rod and drag link ball stud ends contain bearings that are below the specified case depth and/or hardness.

Risk

This can lead to premature wear with possible separation of the ball stud from the socket, increasing the risk of loss of control of the vehicle.

Remedy

Dealers will remove and replace all affected tie rods and drag links with different designed ends.

Recall number 00V246103 · Recall details

What is wrong

Vehicle description: class 8 trucks equipped with felsted electronic accelerator pedals. The return springs can break on the accelerator pedals that are equipped with stainless steel or electroplated wire return springs.

Risk

This condition could cause the pedal to go to full throttle if both return springs break, increasing the risk of a crash.

Remedy

Replacement accelerator pedals equipped with return springs manufactured of music wire with one additional coil on each spring and with an organic coating, eliminating electroplating will be installed.

Recall number 00V230003 · Recall details

What is wrong

Vehicle description: class 8 heavy duty truck chassis equipped with mack 16,000 lb., 18,000 lb., or 20,000 lb. Heavy duty steering axles. The inner wheel bearing cone for the steering axle wheel hub assembly does not properly fit onto the mack steering axle spindle assembly. Improper fit of the bearing to the spindle increases the stress levels to the steering axle spindle which could cause spindle failure.

Risk

If the spindle fails, a loss of driver control could occur, increasing the risk of a vehicle crash.

Remedy

Dealers will remove the left and right hub/drum assemblies from the steering axles and replace the inner wheel bearing cones and cups.

Recall number 99V014001 · Recall details

What is wrong

Vehicle description: class 8 heavy duty trucks. During assembly, insufficient torque occurred of the drag link to the axle steering arm connection. If the drag link to axle sttering arm connection is not torqued and the cotter pin is not installed, the nut could back off during vehicle operation.

Risk

If the nut backs off, there could be a loss of driver control.

Remedy

Dealers will retorque the drag link to the axle steering arm connection.

Recall number 97V191000 · Recall details

What is wrong

The u-joint bearing strap bolts were not properly tightened during assembly.

Risk

Insufficient torque can lead to a broken strap. If the strap breaks, the driveshaft would wobble, possibly resulting in separation. Such wobbling or separation would result in damage to other components of the vehicle and any loose fragment could fall to the roadway presenting a hazard to following vehicles.

Remedy

Dealers will install a new u-joint bearing strap bolts.

Recall number 96V255000 · Recall details

What is wrong

Fuel injection system reconfiguration to comply with engine emission standards cause higher engine vibration levels which lead to early wear and complete failure of the secondary throttle return mechanism.

Risk

In the event the primary throttle return fails, failure of the secondary throttle return system would not provide protection against loss of throttle control.

Remedy

A new production secondary throttle return system configuration will be installed.

Recall number 94V032000 · Recall details

What is wrong

The carrier yoke bolts were manufactured with worn rolling thread dies, causing stress concentrations which caused cracks during the quenching process.

Risk

This condition can cause bolt failure and allow thedriveline to separate from the carrier assembly.

Remedy

Replace the carrier yoke bolts.

Recall number 93V024000 · Recall details

What is wrong

Lap and shoulder seat belt arrangement for fixed (non-suspension) seats does not meet the seat belt loading requirements of fmvss 210. The inboard clinch nut in cab sill, where the buckle for the shoulder and lap belt is mounted, pulled out of the sill during the tests. Consequence of defect: if seat belt anchirage fails, the seat occupant faces an increased risk of injury in an accident or sudden stop.

Remedy

Relocate the inboard seat belt mounting from top of the sill to the forward flange of the sill on the cab floor, and add a 3mm fillet weld around the 2 inboard clinch nuts.

Recall number 91V112000 · Recall details