The problem
Air brake system was modified by adding a longer air line between the abs solenoid and the transfer tee to simplify manufacturing. This modification caused the trucks to be in non-compliance with fmvss 121, brake timing test.
The risk
The mistimed brake and abs system may cause the truck tofail the stopping distance requirement of the fmvss, which may lead to anaccident.
The fix
Remove the extra length of air line and install the transfer tee at the abs solenoid.
Contacts
System: air brake system and anti-lock air brakes; fmvss 121.Vehicle description: trucks built with airglide 100 suspension and bosch absbrake system.
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 Kenworth dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 91V043000.
- 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.