How many recalls does the 2004 Mack CHN have?

NHTSA lists 7 recall campaigns for the 2004 Mack CHN as of October 16, 2026. Each includes the defect description, safety consequence, and the remedy Mack will perform. New recalls can be issued at any time; this page is refreshed from NHTSA daily.

How do I tell if my 2004 Mack CHN is affected by a recall?

Enter your 17-character VIN — stamped at the base of the windshield on the driver side and on the door jamb sticker — at nhtsa.gov/recalls. NHTSA's VIN lookup shows whether your specific vehicle has an unrepaired recall; the list on this page covers every campaign for the 2004 Mack CHN.

Are recall repairs on a 2004 Mack CHN free?

Usually. Federal law requires Mack to remedy recalls on the 2004 CHN free of charge at an authorized Mack dealer, regardless of how many owners the vehicle has had or how many miles are on the odometer — unless it was first sold more than 15 years before the recall was issued (5 years for tires).

Does a recall on the 2004 Mack CHN affect resale value?

An open recall can reduce resale value; a recall that has been repaired (documented in the vehicle history report) generally does not. Before you buy or sell a used 2004 Mack CHN, check the VIN at nhtsa.gov/recalls to confirm every recall has been remedied.

How many owner complaints are on file for the 2004 Mack CHN?

No owner complaints have been filed with NHTSA on the 2004 Mack CHN.

NHTSA vehicle safety data

2004 Mack CHN Recalls, Ratings & Complaints

The 2004 Mack CHN has 7 NHTSA recall campaigns and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Mack dealer.

NHTSA recall and complaint data for the 2004 Mack CHN. Recall data is refreshed daily from NHTSA.

Pre-purchase inspection checklist → Reliability & 5-year cost forecast →

FUEL SYSTEM, DIESEL

NHTSA #07V401000

Reported September 5, 2007 · MACK TRUCKS, INC

Potentially affected: 35,649 vehicles

Defect description

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.

Safety 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.

Manufacturer 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.

Notes

MACK RECALL NO. SC0324.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

FUEL SYSTEM, DIESEL

NHTSA #06V392000

Reported October 13, 2006 · MACK TRUCKS, INC

Potentially affected: 40,204 vehicles

Defect description

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 .

Safety consequence

THIS COULD POTENTIALLY RESULT IN AN ENGINE FIRE.

Manufacturer 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).

Notes

MACK TRUCKS RECALL NO. SC0317.CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION?S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

FUEL SYSTEM, DIESEL

NHTSA #06V290000

Reported August 3, 2006 · MACK TRUCKS, INC

Potentially affected: 342 vehicles

Defect description

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.

Safety consequence

IF THE CROSSOVER BRACKET FALLS A CRASH MAY OCCUR WITHOUT PRIOR NOTICE.

Manufacturer 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.

Notes

CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

SERVICE BRAKES, AIR

NHTSA #05V439000

Reported September 26, 2005 · MACK TRUCKS, INC

Potentially affected: 2,679 vehicles

Defect description

ON CERTAIN VEHICLES. THE BRAKE CAM TUBES ON THE DRIVE AXLE MAY NOT HAVE BEEN GREASED.

Safety consequence

THE BRAKE CAM JOURNAL MAY CORRODE WHICH COULD LEAD TO THE BRAKES DRAGGING. THIS COULD RESULT IN A VEHICLE FIRE.

Manufacturer 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.

Notes

MACK RECALL NO. SC0305.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

SERVICE BRAKES, AIR:DISC:CHAMBER

NHTSA #05V112000

Reported March 24, 2005 · MACK TRUCKS, INC

Potentially affected: 291 vehicles

Defect description

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 INADVERTENTLY APPLIED.

Safety consequence

BRAKING CAPABILITY WOULD BE DIMINISHED, INCREASING THE RISK OF A CRASH.

Manufacturer 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.

Notes

MACK TRUCKS RECALL NO. SC0294.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

POWER TRAIN:AXLE ASSEMBLY

NHTSA #05V111000

Reported March 24, 2005 · MACK TRUCKS, INC

Potentially affected: 39 vehicles

Defect description

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.

Safety consequence

THIS COULD RESULT IN VIBRATION OR BRAKE PERFORMANCE ISSUES. BRAKING CAPABILITY WOULD BE DIMINISHED, INCREASING THE RISK OF A CRASH.

Manufacturer 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.

Notes

MACK TRUCK RECALL NO. SC0293.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

NHTSA #05V015000

Reported January 14, 2005 · MACK TRUCKS, INC

Potentially affected: 13,173 vehicles

Defect description

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.

Safety consequence

IF THE HOSE FAILS, FUEL CAN BE SPRAYED ON THE EXHAUST MANIFOLD, WHICH COULD POTENTIALLY LEAD TO AN ENGINE COMPARTMENT FIRE.

Manufacturer 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 CENTER IMMEDIATELY TO SCHEDULE AN APPOINTMENT TO HAVE YOUR VEHICLE(S) REPAIRED. OWNERS MAY CONTACT MACK TRUCKS AT 610-709-2131.

Notes

MACK TRUCKS RECALL NO. SC0292.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

Other Mack CHN model years

Check your 2004 Mack CHN VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Mack CHN at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

Check a Mack VIN