The problem
On certain trucks, incorrect springs were installed in the exhaust port of certain air management unit (amu) solenoid valves and they may not turn off after actuation.
The risk
Depending on the function affected, this could result in rear suspension air pressure loss, malfunction of the engine brake, permanent engagement of the rear axle differential lock, or prevent engagement of the fifth wheel slide lock. If the warning indicators in the dash are not heeded, a crash could occur.
The fix
Dealers will replace the affected valves. The recall began june 29, 2004. Owners should contact freightliner at 1-800-547-0712.
Contacts
Freightliner recall no. Fl-423. Customers can also contact the national highway traffic safety administration's auto safety hotline at 1-888-dash-2-dot (1-888-327-4236).
What to do
- Check your VIN. Enter it at nhtsa.gov/recalls - it shows whether this recall applies to your vehicle and whether the repair has been done.
- Call a dealer. Any authorized Freightliner dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 04V220000.
- Ask about parts and a loaner. If parts aren't available yet, ask what to do in the meantime.
- Keep your paperwork. If you paid for this repair before the recall, you may be able to get reimbursed - here's how.