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-08-9-5
FORD/MERCURY: 4.0L/4.6L HARD START/ROUGH RUNNING; AFTER LONG HOT SOAK/DIP IN RPM WHEN COMING TO A STOP; BUILT ON OR BEFORE 4/2/08. MAY EXHIBIT A DIP IN RPM BELOW NORMAL IDLE LEVEL OF 600 RPM ON DECELERATION. *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.