2002 Mack CH Problems, Complaints & Recalls

Problem: On certain trucks equipped with aset ac model engines, the engine as configured with an external exhaust gas recirculation system makes servicing the fuel injection lines difficult when using traditional tools. Therefore, it is possible for fuel leaks to develop when removing and installing the fuel injection lines.

Risk: A leak in the fuel injection line may spray fuel on the hot surfaces of the exhaust gas recirculation system, which could result in an engine fire.

Fix: Dealers will replace the fuel injection lines free of charge. Note: this recall supersedes a previous campaign conducted in 2006 (please see 06v392). The recall began on september 11, 2007, with subsequent mailings every six weeks until april 2008. Owners may contact mack at 800-528-6586.

Problem: On certain heavy duty class 8 diesel trucks equipped with aset ac engines, the location of the fuel inlet hose may result in overheating or abrasion of the hose, which may lead to a premature failure.

Risk: If the hose fails, fuel can be sprayed on the exhaust manifold, which could potentially lead to an engine compartment fire.

Fix: Dealers will repair and replace the fuel inlet hose free of charge. The recall began on february 14, 2005. Due to some quality and supply issues with parts to support this safety recall, owners may have been informed during april 2005,that the safety recall was on hold. These issues have now been resolved. For owners who have not had their vehicle(s) repaired, contact a mack parts and service center immediately to schedule an appointment to have your vehicle(s) repaired. Owners may contact mack trucks at 610-709-2131.

Problem: 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.

Risk: 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.

Fix: 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.

Problem: On certain trucks equipped with manifold dash valves with push to connect fittings used to control the park brake function on trucks and trailers with air brakes, the park knob can pop out unexpectedly while the vehicle is in motion. This will exhaust the air from the park brake system on the trailer and apply the parking brakes.

Risk: If this condition is not noticed, the driver could lose control of the vehicle, possibly resulting in a vehicle crash.

Fix: Haldex has notified its customers to make arrangements to have the valve inspected and, if necessary, replaced free of charge. Owner notification is expected to begin during january 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 haldex brake systems at 816-801-2641 or mack at 1-610-709-3337.

Problem: Certain class 8 chassis fail to comply with requirements of federal motor vehicle safety standard no. 121, "air brake systems." the installation of the additional axle(s), raises the gvw capability of the vehicle and therefore requires an increase in the parking brake performance to hold on a 20% grade in order to meet the requirements of the standard.

Fix: Dealers will modify the park brake configuration on these vehicles. 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.

Problem: On certain class 8 chassis equipped with r. H. Sheppard "m100" steering gears and trw "tas65" steering gears, a power steering hose with an incorrect pressure rating was installed by the factory.

Risk: The hose, which connects the power steering pump to the steering gear, could burst or leak, which could result in the loss of power steering assist.

Fix: Dealers will replace the power steering hose. Ower notification began june 20, 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 1-610-709-3337.