Mack Ch 1999

• Recall 34654 [USA]: This could cause ice buildup on the discharge side of the primary and secondary pressure system allowing the relief system to freeze and become blocked resulting in over pressurization of the lng tanks creating the risk of catastrophic tank rupture which could cause serious injury or death.
  On certain chassis built with lng engines, the nexgen lng tank's primary and secondary relief valves could fail to open and relieve tank pressure.
  dealers will retrofit the lng tanks with a new primary relief valve pipe away tube and a new ventilated shroud. The recall began april 6, 2004. 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 1-610-709-3337.
  mackrecall no sC0287.Customers can contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

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• Recall 63308 [USA]: Seizure of the bearings can cause wheel separation or wheel end fire.
  On certain heavytrucks equipped with truck hub units manufactured by skf exclusively for use on arvinmeritor's ff98x series non-drive steer axles, the hub unit bearings can wear prematurely.
  dealers will replace all front axle hubs. Owner notification began on oactober 14, 2003. Customers will be informed of parts availability by october 3, 2003. 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.
  mack recall no. Sc280.Customers can contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

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• Recall 1402 [USA]: If this condition occurs, the driver can lose steering control, possibly resulting in a vehicle crash.
  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.
  dealers will replace the ball socket assemblies. This campaign will supersede nhtsa 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.
  mack truck recall no. Sco276.Also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

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• Recall 4850 [USA]: If this condition occurs, the driver can lose partial control of the right front wheel, possibly resulting in a crash.
  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.
  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.
  also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

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• Recall 5327 [USA]: This condition could cause the pedal to go to full throttle if both return springs break, increasing the risk of a crash.
  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.
  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.
  owner notification began december 13, 2000.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. Also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

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• Recall 5806 [USA]: 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.
  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.
  dealers will remove and replace all affected tie rods and drag links with different designed ends.
  owner notification began december 13, 2000.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. Also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

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• Recall 6670 [USA]: This condition could cause the abs ecu to exhaust the air at the air brake modulators for one or more of the wheels. this could result in extended braking distances and a possible crash.
  Vehicle description: heavy duty trucks built with bendix air abs with an ec-17 1030r electronic control unit (ecu), there have been reports of unwanted abs activation at low speeds caused by 1) chafed abs wheel speed sensor wires on rotating parts or 2) a damaged component at the wheel end that generates a certain type of erratic sensor signal.
  dealers will replace the abs ecu.
  owner notification began january 19, 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.Also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).

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• Recall 2003314 [Canada]: Suspension
  On certain vehicles, a manufacturing defect in the unitized hub assemblies could result in premature spalling of the front wheel bearings, which in turn could lead to eventual breakdown of the bearing, possible front wheel separation and loss of vehicle control amidst the presence of warning signals such as activation of abs warning light, steering wheel vibration, brake drag, noise, and vehicle pull. Correction: dealer will replace both front hub assemblies.

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• Recall 2002034 [Canada]: Steering
  Certain 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. If this condition occurs, the driver can lose partial control of the right front wheel, possibly resulting in a crash. Correction: dealers will replace the defective drag links.

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• Recall 2002059 [Canada]: Steering
  Certain 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. 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. Correction: dealers will remove and replace all affected tie rods and drag links with different designed ends. Trucks that have been repaired under recall 00v246103/sC0262 will not be re-recalled. Trucks only inspected and determined to have an acceptable date code under sC0262 will be recalled under this campaign.

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• Recall 2002132 [Canada]: Steering
  Certain heavy-duty trucks equipped with trw 20-edl ball sockets were manufactured with a case depth and/or hardness that were below specifications. A bearing that is below specification may prematurely wear-out the ball socket, which, in turn, may lead to a separation of the tie rod. Correction: dealers will replace the tie rods.

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• Recall 2002189 [Canada]: Brakes
  On certain vehicles, additional axles were installed to increase the gross vehicle weight capacity but the parking brake capacity was not increased accordingly therefore not complying with cmvss 121 regulations. Correction: the dealer will perform repairs as necessary.

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• Recall 2000248 [Canada]: Engine
  On certain vehicles, the return springs on the accelerator pedals are made of stainless steel or electroplated music wire. The design fatigue stress of the stainless steel springs is in a range that would predict that some failures would occur. The music wire springs can fail due to stress risers created by electrical arcing during electroplating. Correction: accelerator pedals will be replaced with ones equipped with return springs manufactured of music wire with one additional coil on each spring and with an organic coating, eliminating electroplating.

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• Recall 2000264 [Canada]: Steering
  On certain vehicles, the trw tie rod ball stud ends contain bearings that are below the specified case depth and/or hardness. This can lead to premature wear out and a possible separation of the ball stud from the socket and loss of steering control. Correction: all affected tie rods will be replaced.

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To ensure accuracy and for your safety, it is recommended to do a free VIN recall check here or here [USA] - UK - Canada.

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

• Integral hub and bearing assembly investigation # PE02094

  The companies involved in this matter are: skf (hub mfr), arvinmeritor (front axle mfr), and mack (manufacturer of class viiitractor/trucks).Skf identified manufacturing defects for specific build dates on front axle hub and bearings (wheel bearings) supplied to arvinmeritor.As a result, arvinmeritor notified mack of axles supplied with possible defective front hub assemblies.As a result of that notification, 998 trucks are being recalled by mack for defective front axle wheel bearings which may fail in such a way that a wheel separation or wheel bearing fire occurs.See attached summary report for additional details.
  

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