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.
TSB-10-12-11
FORD: SOME MOTORHOME CHASSIS VEHICLES EQUIPPED WITH A 6.8L ENGINE MAY EXHIBIT HESITATION, LOSS OF RPM AND/OR LOW IDLE RPM DRIVEABILITY CONCERNS. REPROGRAM THE POWERTRAIN CONTROL MODULE (PCM) TO THE LATEST CALIBRATION USING IDS RELEASE 67.04 AND HIGHER. *PE
16683
FALSE FAILURE OF THE VAPOR MANAGEMENT VALVE (VMV). *TT *JB
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.