2007 MACK CHN — Problems, Recalls & Safety Data
N/A
Safety Rating
1
Owner Complaint
12
Recalls
3
Service Bulletins
0
Investigations
Overview of the 2007 MACK CHN
The 2007 MACK CHN has received a total of 1 safety complaint filed with the National Highway Traffic Safety Administration (NHTSA). There have been 12 recall campaigns affecting this vehicle, covering issues with TRAILER HITCHES:FIFTH WHEEL ASSEMBLY, PARKING BRAKE, SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE. 3 technical service bulletins have been issued by Mack Trucks, Inc. for this model year. The most commonly reported problem area is the Engine And Engine Coolingengine (1 complaint).
Recalls for the 2007 MACK CHN
NHTSA has recorded 12 recalls for the 2007 MACK CHN, potentially affecting up to 140,171 vehicles.
Recall 07V497000 — TRAILER HITCHES:FIFTH WHEEL ASSEMBLY
| 950 vehicles affected
Defect: ON CERTAIN TRUCKS EQUIPPED WITH A SAF HOLLAND SIMPLEX FIFTH WHEEL, THE LEVER ARM PIVOT BOLT MAY HAVE BEEN OVER TIGHTENED. AN OVER TIGHTENED PIVOT BOLT CAN DISTORT THE PIVOT BOLT SPACER SLEEVE, WHICH MAY PREVENT THE FIFTH WHEEL LATCH JAW FROM CLOSING AND LATCHING SECURELY AROUND THE TRAILER KING PIN.
Consequence: THERE IS A POSSIBILITY THAT THE PIVOT BOLT CAN BECOME LOOSE WITHOUT THE DRIVER'S KNOWLEDGE. WHEN THIS OCCURS, THE DRIVER COULD DRIVE AWAY AND THE TRAILER COULD BECOME DISENGAGED, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE PIVOT BOLT AND SLEEVE WITH A HEX HEAD SHOULDER BOLT AND WASHER FREE OF CHARGE. THE RECALL BEGAN ON JANUARY 28, 2008. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
View full details →Recall 07V360000 — PARKING BRAKE
| 18,805 vehicles affected
Defect: ON CERTAIN TRUCKS EQUIPPED WITH BENDIX SR-7 SPRING BRAKE MODULATING VALVES, THE INTERNAL RUBBER CHECK VALVE MAY LEAK CAUSING A DELAY IN THE APPLICATION OF THE SPRING BRAKES TO PARK THE VEHICLE AFTER THE OPERATOR PULLS THE DASH VALVE BUTTON.
Consequence: THIS COULD DELAY OR FAILURE IN APPLYING THE PARKING BRAKES WHICH COULD RESULT IN A VEHICLE ROLL AWAY, INCREASING THE RISK OF A CRASH.
Remedy: MACK IS WORKING WITH BENDIX TO REPAIR THESE VEHICLES (PLEASE SEE 07E037). BENDIX WILL INSTALL A CHECK VALVE REPAIR KIT FOR THE AFFECTED SR-7 SPRING BRAKE MODULATING VALVE FREE OF CHARGE. THE RECALL BEGAN ON JANUARY 10, 2008. OWNERS MAY...
View full details →Recall 07V361000 — SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
| 21,847 vehicles affected
Defect: ON CERTAIN TRUCKS EQUIPPED WITH PARKER SINGLE CHECK VALVES (SCV) PROVIDED BY BENDIX. THE DEFECT EXISTS IN THE PARKER SCV THAT CONNECTS WITH THE SUPPLY PORT OF THE SR-7 SPRING BRAKE MODULATING VALVE. AFTER PROLONGED USE OF THE PARKER SCV, THE VALVE BODY RETAINER MAY BECOME EXCESSIVELY WORN AND EVENTUALLY BREAK APART. PIECES OF THE PARKER SCV CAN BECOME LODGED...
Consequence: THIS CONDITION CAN CAUSE A DELAY IN THE APPLICATION OF THE SPRING BRAKES TO PARK THE VEHICLE AFTER THE OPERATOR PULLS THE DASH VALVE BUTTON. THESE CONDITIONS CAN OCCUR WITHOUT WARNING, LEADING TO UNINTENDED VEHICLE ROLLAWAY, BRAKE DRAG, OR IN THE CASE OF LOSS OF PRIMARY CIRCUIT, INABILITY TO MODULATE THE SPRING BRAKES.
Remedy: MACK IS WORKING WITH BENDIX TO REPLACE THE PARKER SINGLE CHECK VALVE. THE RECALL BEGAN ON JANUARY 9, 2008. OWNERS MAY CONTACT BENDIX AT 1-440-329-9000 OR MACK AT 1-800-528-6586.
View full details →Recall 07V401000 — FUEL SYSTEM, DIESEL
| 35,649 vehicles affected
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...
View full details →Recall 07V159000 — FUEL SYSTEM, DIESEL
| 9,102 vehicles affected
Defect: 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.
Consequence: THIS COULD COMPROMISE THE FUEL INJECTION LINE OVER TIME WHICH COULD POSSIBLY RESULT IN AN ENGINE FIRE.
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.
View full details →Recall 07V123000 — POWER TRAIN:AXLE ASSEMBLY
| 51 vehicles affected
Defect: ON CERTAIN TRUCKS, THE AXLE HOUSINGS MAY HAVE BEEN MANUFACTURED WITH STEEL THAT WAS OUT OF SPECIFICATION WHICH COULD RESULT IN A FATIGUE FAILURE OVER TIME.
Consequence: IF A FATIGUE FAILURE OCCURS AND IS LEFT UNATTENDED, THE AXLE MAY LOCK UP OR THE END OF THE AXLE COULD COME OFF, WHICH COULD RESULT IN A VEHICLE CRASH.
Remedy: DEALERS WILL INSPECT AND REPLACE THE AXLES FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON OR ABOUT APRIL 9, 2007. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
View full details →Recall 07V023000 — STEERING
| 2,085 vehicles affected
Defect: ON CERTAIN TRUCKS, THE NUT THAT RETAINS THE STEERING WHEEL MAY NOT HAVE BEEN INSTALLED.
Consequence: IF THE RETAINING NUT WAS NOT INSTALLED, THE STEERING WHEEL MAY COME OFF, WHICH COULD RESULT IN A VEHICLE CRASH.
Remedy: DEALERS WILL REMOVE THE HORN BUTTON TO CONFIRM THAT THE RETAINING NUT WAS INSTALLED. A RETAINING NUT WILL BE ADDED IF THE NUT IS MISSING. THE RECALL BEGAN ON FEBRUARY 12, 2007. OWNERS MAY CONTACT MACK TRUCKS AT 800-866-1177.
View full details →Recall 06V271000 — SERVICE BRAKES, AIR
| 7,447 vehicles affected
Defect: ON CERTAIN TRUCKS EQUIPPED WITH A LEGRIS AIR MANIFOLD, THE BRASS PUSH-TO-CONNECT CARTRIDGE MAY UNEXPECTEDLY SEPARATE FROM THE PLASTIC HOUSING.
Consequence: IF THE PUSH-TO-CONNECT CARTRIDGE THAT SUPPLIES THE AIR TO THE PARK BRAKE CHAMBERS WERE TO SEPARATE, THEN THE BRAKES COULD UNEXPECTEDLY APPLY INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE AIR MANIFOLD FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 27, 2006. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
View full details →Recall 06V367000 — SERVICE BRAKES, AIR
| 1,102 vehicles affected
Defect: ON CERTAIN TRUCKS, THE BRAKE CAM TUBES ON THE STEER AND DRIVE AXLES MAY NOT HAVE BEEN GREASED.
Consequence: THE BRAKE CAM JOURNALS MAY CORRODE WHICH MAY LEAD TO THE BRAKES DRAGGING WHICH COULD RESULT IN A VEHICLE FIRE.
Remedy: DEALERS WILL ADD GREASE TO THE BRAKE CAM TUBES FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 29, 2006. OWNERS MAY CONTACT MACK AT 1-800-866-1177.
View full details →Recall 06V290000 — FUEL SYSTEM, DIESEL
| 342 vehicles affected
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.
View full details →Recall 06V232000 — PARKING BRAKE:CONVENTIONAL:AIR
| 2,587 vehicles affected
Defect: ON CERTAIN TRUCKS EQUIPPED WITH SR-7 BENDIX BRAKE VALVES, THE CHECK VALVE INSIDE THE VALVE CAVITY MAY NOT PROPERLY SET, CAUSING INTERNAL AIR LEAKAGE. IF THE CHECK VALVE DOES NOT PROPERLY SEAT, THE RESULTING LEAKAGE CAN CAUSE A DELAY IN THE APPLICATION OF THE SPRING BRAKES TO PARK THE VEHICLE AFTER OPERATOR PULLS THE DASH VALVE BUTTON.
Consequence: THE DELAYED PARKING BRAKE APPLICATION CAN OCCUR WITHOUT WARNING, LEADING TO UNINTENDED VEHICLE ROLLAWAY INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL INSPECT THE VALVES AND REPLACE IT FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 14, 2006. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.
View full details →Recall 06V392000 — FUEL SYSTEM, DIESEL
| 40,204 vehicles affected
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....
View full details →Owner Complaints for the 2007 MACK CHN
1 complaint has been filed with NHTSA for the 2007 MACK CHN. Below is a breakdown by vehicle component.
| Component | Complaints | Crashes | Fires | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine And Engine Coolingengine | 1 | 0 | 0 | 0 | 0 |
Most Recent Complaints
2007 MACK TRUCK CHN 613, 427 ASET AC ENGINE FAILURE DUE TO OIL PUMP DRIVE GEAR SPINNING LOOSE ON AUXILIARY SHAFT. WHEN THE VEHICLE BEGAN TRAVELING DOWN HILL, THE OIL PUMP DRIVE GEAR FAILED CAUSING AN IMMEDIATE LOSS OF OIL PRESSURE. THE ENGINE BECAME A CRITICAL INSTRUMENT IN CONTROLLING THE VEHICLE'S DOWN HILL SPEED PARTICULARLY THE ENGINE BRAKE FEATURE AKA THE "JAKE BRAKE". THE ENGINE BRAKE USES ENGINE OIL FLOW TO OPERATE. SINCE THERE WAS NO MORE OIL FLOW, THE ENGINE BRAKE WAS RENDERED UNUSABLE. AT THIS POINT, THE CHOICE WAS TO CONTINUE DOWN HILL AND RELY SOLELY ON THE VEHICLE BRAKES TO CONTROL THE VEHICLE SPEED, OR CONTINUE TO USE THE ENGINE WITHOUT THE ADDED BRAKING POWER OF THE ENGINE BRAKE KNOWING THAT THE ENGINE WOULD BE DESTROYED. THE DRIVER CHOSE TO DESTROY THE ENGINE AND NOT RISK HIS LIFE OR THE LIVES OF OTHERS. THE DEALER REFUSED TO REPAIR THE VEHICLE UNDER WARRANTY BECAUSE THE EECM INDICATED THE ENGINE'S MAXIMUM ALLOWED SPEED WAS EXCEEDED. FURTHER INVESTIGATION REVEALED THE PROBLEM IS INHERENT TO ALL ASET ENGINES BECAUSE THE OIL PUMP GEAR HELIX WAS CHANGED FOR THE NEW DESIGN ENGINE. THE AUXILIARY SHAFT DIRECTION OF ROTATION WAS REVERSED AND THE DIRECTION OF THRUST ON THE DRIVE GEAR FORCES THE DRIVE GEAR AWAY FROM THE REAR BEARING JOURNAL WHICH IT IS NESTED AGAINST. OLDER ENGINE DESIGN HAD THE DIRECTION OF THRUST TOWARD THE BEARING JOURNAL WHICH HELD THE GEAR IN PLACE. ANY CONDITION, (LIKE AN ENGINE OVERSPEED) THAT WOULD INCREASE OIL PRESSURE COULD DISLODGE THE GEAR. ACCORDING TO THE DEALER, AN ENGINE OVERSPEED CONDITION CAN ONLY OCCUR WHILE GOING DOWN HILL AND USING THE ENGINE TO CONTROL VEHICLE SPEED. IF THE HILL WOULD HAVE BEEN HIGHER, THE ENGINE MAY NOT HAVE BEEN ABLE TO CONTINUE TO SLOW THE VEHICLE AND A CRASH WOULD MOST LIKELY HAVE OCCURRED. THIS HAPPENED IN SOUTHEAST LOUISIANA WHERE HIGH HILLS ARE NON EXISTENT. HAD THIS HAPPENED IN A MOUNTAINOUS AREA, IT COULD HAVE BEEN DISASTROUS. MACK TRUCKS REFUSES TO DISCUSS THIS ANY FURTHER. *TR
Safety Rating for the 2007 MACK CHN
NHTSA has not yet tested the 2007 MACK CHN in its New Car Assessment Program.
Technical Service Bulletins for the 2007 MACK CHN
Mack Trucks, Inc. has issued 3 technical service bulletins (TSBs) for the 2007 MACK CHN. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
K12034241 — ENGINE
Diagnosing Performance Complaints ASET Engine
K00539104 — ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
V-MAC - Speedometer Not working After Reprograming
K32398290 — ELECTRICAL SYSTEM
V-MAC III - PTO Does Not Operate
NHTSA Investigations for the 2007 MACK CHN
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the MACK CHN
- 2002 MACK CHN — 0 complaints
- 2003 MACK CHN — 0 complaints
- 2004 MACK CHN — 0 complaints
- 2005 MACK CHN — 0 complaints
- 2006 MACK CHN — 0 complaints
- 2007 MACK CHN (current)
- 2008 MACK CHN — 0 complaints
Other MACK Models
- MACK MACK — 35 total complaints
- MACK ANTHEM (AN) — 12 total complaints
- MACK CXU612 — 12 total complaints
- MACK CX613 — 10 total complaints
- MACK GRANITE (GR) — 10 total complaints
- MACK CH600 — 9 total complaints
- MACK GU — 9 total complaints
- MACK RD — 8 total complaints