2001 Western Star 5900 TSBs
1 Technical Service Bulletin across 1 categories
Fuel System
1 bulletin10044353
WESTERN STAR: AROUND THE DIESEL EXHAUST FLUID (DEF) AN EXCESSIVE AMOUNT OF CRYSTAL OR POWDER BUILT UP INDICATES A LEAK...
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CAUSED BY EVAPORATION OF DEF EXPOSED TO AIR AND/OR DAMPNESS. *PE