Mack Trucks, Incorporated: Service Brakes, Air › Supply › Check Valve
Mack Trucks, Incorporated reported this defect to federal regulators on Jul 17, 2003 and put the number of vehicles at risk at 1,232. The repair is free for as long as the recall stands.
The defect
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 RESERVOIR AND A VEHICLE OPERATOR WOULD NOT KNOW THAT THIS HAS HAPPENED.
The risk
IN THIS CONDITION, THE VEHICLE WOULD NOT MEET THE EMERGENCY REQUIREMENTS OF THE STANDARD.
The remedy
DEALERS WILL REPLACE THE CHECK VALVE. OWNER NOTIFICATION BEGAN NOVEMBER 26, 2003. OWNERS SHOULD CONTACT MACK AT 1-610-709-3337.
10 model years covered
Newest first| Vehicle | Complaints | Recalls | Fires | Crashes |
|---|---|---|---|---|
| 2003 Mack CH | 0 | 7 | 0 | 0 |
| 2003 Mack CL | 0 | 2 | 0 | 0 |
| 2003 Mack CV | 2 | 5 | 1 | 0 |
| 2003 Mack CX | 0 | 10 | 0 | 0 |
| 2003 Mack DM6 | 0 | 1 | 0 | 0 |
| 2003 Mack DMM | 0 | 1 | 0 | 0 |
| 2003 Mack LE | 0 | 4 | 0 | 0 |
| 2003 Mack MR | 0 | 4 | 0 | 0 |
| 2003 Mack RD6 | 0 | 1 | 0 | 0 |
| 2003 Mack RD8 | 0 | 1 | 0 | 0 |
What this page is, and what to do next
A recall is not an opinion. It is a Part 573 report a manufacturer is required by federal law to file once it decides a defect poses an unreasonable risk to safety, and it commits them to repairing the vehicle at no cost to the owner. The three passages above are the manufacturer’s own wording as published by NHTSA.
This page describes the campaign. It cannot tell you whether one particular car has already been through the shop — that is tracked by VIN, and only the manufacturer knows it. Check yours at nhtsa.gov/recalls or with a franchised dealer, quoting campaign number 03V253000.
Full record for the 2003 Mack CH → · Recalls carrying a do-not-drive advisory → · Where this data comes from →