No complaints are listed for the 2004 Mack CHN. NHTSA's API and bulk file list none in this build.
Data build 2026-10-07.
NHTSA lists this vehicle as MACK CHN.
Model-generated complaint tags: No complaints are listed for tagging.
Recalls
7 recalls.
Date: 2007-09-05. Systems: FUEL SYSTEM, DIESEL.
Defect: 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.
Consequence: 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.
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 EVERY SIX WEEKS UNTIL APRIL 2008. OWNERS MAY CONTACT MACK AT 800-528-6586.
Do not drive: No. Park outside: No.
Date: 2006-10-13. Systems: FUEL SYSTEM, DIESEL.
Defect: 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 .
Consequence: THIS COULD POTENTIALLY RESULT IN AN ENGINE FIRE.
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. 07V159/MACK RECALL NO. SCO323 FOR VEHICLES THAT HAVE HAD THIS REPAIR ALREADY PERFORMED.) THIS RECALL HAS BEEN SUPERSEDED (PLEASE SEE 07V401/SC0324).
Do not drive: No. Park outside: No.
Date: 2006-08-03. Systems: FUEL SYSTEM, DIESEL.
Defect: ON CERTAIN TRUCKS, THE FUEL LINE CROSSOVER BRACKET MAY PREMATURELY FAIL AND UNEXPECTEDLY FALL TO THE ROAD. THE LOCATION AND SIZE OF THE BRACKET DRAWS A CONCERN TO THE BRACKET BEING PICKED UP AND THROWN BY THE DRIVE AXLE WHEELS.
Consequence: IF THE CROSSOVER BRACKET FALLS A CRASH MAY OCCUR WITHOUT PRIOR NOTICE.
Remedy: DEALERS WILL REPLACE THE BRACKETS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 20, 2006. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
Do not drive: No. Park outside: No.
Date: 2005-09-26. Systems: SERVICE BRAKES, AIR.
Defect: ON CERTAIN VEHICLES. THE BRAKE CAM TUBES ON THE DRIVE AXLE MAY NOT HAVE BEEN GREASED.
Consequence: THE BRAKE CAM JOURNAL MAY CORRODE WHICH COULD LEAD TO THE BRAKES DRAGGING. THIS COULD RESULT IN A VEHICLE FIRE.
Remedy: DEALERS WILL REMOVE THE BRAKE CAMSHAFT TO INSPECT FOR CORROSION. THE BRAKE CAMSHAFT WILL BE REPLACED AS REQUIRED FREE OF CHARGE. THE RECALL BEGAN ON JANUARY 18, 2006. OWNERS MAY CONTACT MACK AT 1-336-393-2233.
Do not drive: No. Park outside: No.
Date: 2005-03-24. Systems: SERVICE BRAKES, AIR.
Defect: ON CERTAIN HEAVY DUTY CLASS 8 TRUCKS EQUIPPED WITH AIR SUSPENSION PROPRIETARY AXLES AND ADJUSTABLE LENGH TORQUE RODS, AN INTERFERENCE BETWEEN THE ADJUSTABLE TORQUE ROD AND THE BRAKE CHAMBER ON THE LEFT SIDE OF THE CHASSIS MAY EXIST. THE SPRING BRAKE CHAMBER CLAMP RING COULD POSSIBLY BE DISTORTED OVER TIME RESULTING IN LOSS OF AIR, WHICH COULD LEAD TO THE SPRING BRAKE AT THE CHAMBER BEING INADVERT (excerpt)
Consequence: BRAKING CAPABILITY WOULD BE DIMINISHED, INCREASING THE RISK OF A CRASH. (excerpt)
Remedy: DEALERS WILL REPAIR AND REPLACE THE ADJUSTABLE TORQUE ROD, WITH A FIXED LENGTH TORQUE ROD, INSPECT AND REPAIR THE BRAKE CHAMBER FREE OF CHARGE. THE RECALL BEGAN ON MAY 3, 2005. OWNERS MAY CONTACT MACK TRUCKS AT 610-709-2131. (excerpt)
Do not drive: No. Park outside: No.
Date: 2005-03-24. Systems: POWER TRAIN.
Defect: ON CERTAIN TRUCKS EQUIPPED WITH THE FXL AXLE AND MERITOR 16.5 X 5 BRAKES WITH DUST SHIELDS, THERE MAY BE INTERFERENCE BETWEEN THE DUST SHIELD MOUNTING BOLT AND THE KNUCKLE ON THE FRONT AXLE. AS A RESULT OF THE INTERFERENCE, THE BOLT JOINT BETWEEN THE WHEEL END AND THE KNUCKLE MAY NOT MEET THE TORQUE REQUIREMENTS.
Consequence: THIS COULD RESULT IN VIBRATION OR BRAKE PERFORMANCE ISSUES. BRAKING CAPABILITY WOULD BE DIMINISHED, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REMOVE THE HUB AND BRAKE ASSEMBLY TO INSTALL A NEW DUST SHIELD FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 17, 2005. OWNERS MAY CONTACT MACK TRUCKS 610-709-2131.
Do not drive: No. Park outside: No.
Date: 2005-01-14. Systems: FUEL SYSTEM, GASOLINE.
Defect: 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. (excerpt)
Consequence: IF THE HOSE FAILS, FUEL CAN BE SPRAYED ON THE EXHAUST MANIFOLD, WHICH COULD POTENTIALLY LEAD TO AN ENGINE COMPARTMENT FIRE. (excerpt)
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 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 (excerpt)
Do not drive: No. Park outside: No.
Manufacturer communications
59 manufacturer communications.
Communications by system| System | Count |
|---|
| ENGINE AND ENGINE COOLING | 18 |
|---|
| ELECTRICAL SYSTEM | 17 |
|---|
| POWER TRAIN | 8 |
|---|
| EQUIPMENT | 6 |
|---|
| SUSPENSION | 5 |
|---|
| STRUCTURE | 4 |
|---|
| SERVICE BRAKES | 2 |
|---|
| SERVICE BRAKES, AIR | 2 |
|---|
11032092
Date: 2026-04-09. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
11021332
Date: 2025-07-28. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
11021333
Date: 2025-07-17. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, SERVICE BRAKES.
CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
11008366
Date: 2024-09-13. Type: Service Bulletin/Repair Instructions. Systems: SERVICE BRAKES.
CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
10246086
Date: 2023-11-07. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
TSB: Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.98 ratios. The new HD through shaft is an upgrade over the c
10241946
Date: 2023-08-14. Type: Service Bulletin/Repair Instructions. Systems: SUSPENSION.
TSB: Barksdale Leveling Valve, Leak Test
10238788
Date: 2023-06-06. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
V-MAC III Odometer And Engine Hours Programming
10237339
Date: 2023-05-24. Type: Service Bulletin/Repair Instructions. Systems: EQUIPMENT.
CBR: eWarranty To UCHP Labor Code ( SCC Code ) Crossover, Conversion Information For Use With Campaigns ( FI, PI ) And Recalls ( EC, SC ), Location On Trucks Dealer Portal ( TDP )
10219058
Date: 2022-08-06. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.
2008 Document reformated to be published as a TSB in Impact. Frame reinforcement plate.
10219059
Date: 2022-08-06. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN, STRUCTURE, SUSPENSION.
2007 Document reformatted to be published as a TSB in Impact. Updated Crossmember for improved clearance.