Mack Ch Recalls & Complaints by Model Year
NHTSA lists 34 safety recalls and 6 owner complaints across 21 model years of the Mack Ch (1987–2007). The most-complained-about year is 2002.
Pick your Mack Ch model year
| Model year | Recalls | Complaints |
|---|---|---|
| 2007 Mack Ch | 3 | 0 |
| 2006 Mack Ch | 2 | 0 |
| 2005 Mack Ch | 3 | 0 |
| 2004 Mack Ch | 5 | 0 |
| 2003 Mack Ch | 7 | 0 |
| 2002 Mack Ch | 6 | 2 |
| 2001 Mack Ch | 5 | 0 |
| 2000 Mack Ch | 7 | 0 |
| 1999 Mack Ch | 7 | 0 |
| 1998 Mack Ch | 3 | 0 |
| 1997 Mack Ch | 2 | 1 |
| 1996 Mack Ch | 3 | 1 |
| 1995 Mack Ch | 1 | 0 |
| 1994 Mack Ch | 0 | 1 |
| 1993 Mack Ch | 4 | 0 |
| 1992 Mack Ch | 5 | 1 |
| 1991 Mack Ch | 5 | 0 |
| 1990 Mack Ch | 5 | 0 |
| 1989 Mack Ch | 7 | 0 |
| 1988 Mack Ch | 6 | 0 |
| 1987 Mack Ch | 1 | 0 |
What Mack Ch owners complain about
Across all model years, owners have filed 6 complaints with NHTSA. The 2002 model year has the most, with 2.
All Mack Ch recalls (34)
Every NHTSA safety campaign that lists a Mack Ch, most recent first, with the model years each one covers.
-
Fuel system, diesel
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.
Remedy: 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…
-
Fuel system, diesel
Certain trucks were recalled for the installation of sleeves on the fuel injection line as required by safety recall sc0317 (NHTSA recall no. 06v392). There is a possibility that the new sleeves may chafe the fuel injection line.
Remedy: Dealers will remove the protective sleeves on all fuel injection lines free of charge. This recall began on april 19, 2007. Owners may contact mack trucks at 1-800-528-6586.
Model years: 2007
-
Fuel system, diesel
On certain trucks, a leak in the aset AC fuel injection line may spray fuel on the exhaust gas recirculation pipes that carry hot exhaust gases .
Remedy: Mack has issued a stop work on this campaign under further notice (2-22-2007). The remedy does not adequately address the issue on all vehicles. Mack will re-release the recall in the near future. (please see NHTSA no.…
-
Hoses, lines/piping, and fittings (fuel system)
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.
Remedy: 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…
-
Steering
On certain truck chassis, the steering gear mounting bolts were made of inconsistent bolt material, which has LED to bolt failures. This inconsistent bolt material condition could result in a failure of a steering gear mounting bolts. The steering gear is mounted to the vehicle's frame with three bolts.
Remedy: Dealers will inspect vehicles. New steering gear mounting bolts will be installed. The recall began october 2004. Owners should contact mack at 1-610-709-3337.
Model years: 2003
-
Steering
On certain truck chassis, the steering gear mounting bolts were over-torqued at installation. The steering gear is mounted to the vehicle's frame rail with 3 bolts.
Remedy: Dealers will inspect vehicles. New steering gear mounting bolts will be installed. The recall began october 2004. Owners should contact mack at 1-610-709-3337.
Model years: 2004
-
Pressure relief devices (fuel system)
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.
Remedy: 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…
Model years: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
-
Arm (steering)
On certain chassis equipped with dana steering axle assemblies. These axles are built with an integral knuckle and steering arm. The steering arm could have longitudinal cracks.
Remedy: Dealers will inspect the integral knuckle and steer arm and replace if necessary. Owner notification began on january 16, 2004. Owners who take their vehicles to an authorized dealer on an agreed upon service date and…
Model years: 2003
-
Check valve (service brakes)
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…
Remedy: Dealers will replace the check valve. Owner notification began november 26, 2003. Owners should contact mack at 1-610-709-3337.
Model years: 2003
-
Hub (suspension)
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.
Remedy: 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…
-
Service brakes, air
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.
Remedy: 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…
Model years: 2002
-
Parking brake
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…
Remedy: 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…
Model years: 2002
-
Tie rod assembly (steering)
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.
Remedy: 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…
-
Hose, piping, and connections (steering)
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.
Remedy: 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…
Model years: 2002
-
Hose, piping, and connections (steering)
On certain class 8 heavy duty trucks equipped with r. H. Sheppard m90 steering gears, an incorrect hose was used for the high-pressure line between the power steering pump and the steering gear. The hose is rated at 2000 PSI, while it should be rated at 3000 PSI.
Remedy: Dealers will replace the steering hose. 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…
-
Pump (steering)
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.
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…
Model years: 2001
-
Tie rod assembly (steering)
Vehicle description: heavy duty trucks equipped with trw tie rod ends on certain dana/spicer axles (e12001) and mack axles through dana heavy axle (fawl 12). The tie rod and drag link ball stud ends contain bearings that are below the specified case depth and/or hardness.
Remedy: 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…
Model years: 2000
-
Service brakes, air: controls, pedals and linkages
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.
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…
-
Connection (steering)
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.
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…
Model years: 1999
-
Accelerator pedal (vehicle speed control)
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.
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.
-
Tie rod assembly (steering)
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.
Remedy: Dealers will remove and replace all affected tie rods and drag links with different designed ends.
Model years: 1999
-
Antilock (service brakes)
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…
Remedy: Dealers will replace the ABS ECU.
-
Fifth wheel assembly (trailer hitches)
Vehicle description: heavy duty class 8 trucks equipped with fontaine fifth wheel assemblies. The fifth wheel mounting plates can crack.
Remedy: Dealers will inspect and replace the mounting plates that are cracked.
-
Hub (suspension)
Vehicle description: heavy duty trucks equipped with design level 1, rockwell ff980 series front axle. The front axle hub flange can develop cracks due to high stress levels.
Remedy: Dealers will remove and replace the front hubs with an improved design level 2 hub.
Model years: 1996
-
Connection (steering)
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.
Remedy: Dealers will retorque the drag link to the axle steering arm connection.
Model years: 1997
-
Universal joint (power train)
The u-joint bearing strap bolts were not properly tightened during assembly.
Remedy: Dealers will install a new u-joint bearing strap bolts.
Model years: 1996
-
Center support bearing (power train)
The driveshaft center bearing support bracket can crack and break.
Remedy: Dealers will replace the center bearing hanger bracket.
-
Vehicle speed control
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.
Remedy: A new production secondary throttle return system configuration will be installed.
-
Fan (engine and engine cooling)
The engine cooling fan blades may break due to inadequate blade strength around the rivets that attach the blades to the fan spider.
Remedy: An improved fan will be installed on these vehicles.
-
Trailer hitches
The carrier yoke bolts were manufactured with worn rolling thread dies, causing stress concentrations which caused cracks during the quenching process.
Remedy: Replace the carrier yoke bolts.
-
Anchorage (seat belts)
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…
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.
-
Linkages (steering)
The upper and lower pinch bolt on the steering pitman arm and the lower pinch bolt connection on shephard power gears were not torqued correctly.
Remedy: Install english hex head bolts and flat washers; torque pinch bolts to specifications.
-
Foot control/valve (service brakes)
Internal components of the e-12 dual circuit air brake valves may be misassembled so that one of the tapered snap rings is upside down.
Remedy: Replace misassembled valves.
Model years: 1989
-
Steering wheel/handle bar (steering)
Steering wheel retaining nuts may have been improperly installed and/or torqued.
Remedy: Renew and retorque steering wheel retaining nuts.
Other Mack models
- Mack28 complaints
- Anthem (an)12 complaints
- Granite (gr)9 complaints
- CXU6127 complaints
- Gu6 complaints
- CH6005 complaints
- Cxu5 complaints
- Rd5 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.