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.
Risk and remedy
Risk
The mistimed brake and ABS system may cause the truck tofail the stopping distance requirement of the fmvss, which may lead to anaccident.
Remedy
Remove the extra length of air line and install the transfer tee at the ABS solenoid.
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
10040181Paccar: engineering standards have changed and there are now engines with heat treated bolts.
10040180Paccar: a software update IS causing the check engine light to come on.
Every Kenworth T800 model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.