Vehicle report
Technical 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.
SF-397A-F
DAIMLER TRUCKS-FREIGHTLINER: ON CERTAIN VEHICLES, THE AIR FILTER HOUSING AND/OR THE AIR INTAKE DUCT MAY NOT SEAL CORRECTLY, ALLOWING DUST AND DIRT TO ENTER THE ENGINE. THE AIR FILTER HOUSING AND/AIR INTAKE DUCT WILL BE REPLACED, AS APPROPRIATE. *PE UPDATED 7/6/09. *PE
SF-398A-F
FREIGHTLINER: SOME VEHICLES MAY HAVE BEEN BUILT WITH CLAMPS USED TO CONNECT THE CLEAN GAS INDUCTION (CGI) PLUMBING THAT MAY NOT PROVIDE AN ADEQUATE SEAL, ALLOWING UNFILTER AIR INTO THE SYSTEM. THE CLAMPS WILL BE REPLACED. *PE
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.