98WS001
Service Bulletin/Repair Instructions
SUBJECT ON CATERPILLAR 3406E ENGINES WITH J. JEB BLOCK HEATERS. *YC
Vehicle report
1998 WESTERN STAR CATERPILLAR
Service bulletins
1 bulletinTechnical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.