Air conditioning and heating duct hoses could chafe and expose the wire reinforcement. The exposed wire may come in contact with one of the electrical connectors and short out.
Risk and remedy
Remedy
Dealer will replace both the air conditioning and heating hoses at no cost to owner.
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 W900 model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.