P0505 on the 2005 Ford F-150
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| TSB-12-7-4 | 2012-08-28. Service bulletin. FORD/LINCOLN/MERCURY: IF BATTERY WAS DISCONNECTED OR DEAD, VEHICLES/TRUCKS MAY EXPERIENCE HARD STARTS AND ENGINE IDLE RPM FLUCTUATION AND EXHIBIT DIAGNOSTIC TROUBLE CODES (DTCS) P0505, P0506, P2111 AND P2112. *PE |
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| 08-5-13 | 2008-05-30. Service bulletin. 4.6L/5.4L--MIL P0506 AND/OR P0505--HESITATION/LOSS OF RPM/DIFFICULTY STARTING/LOW IDLE RPM. *NJ |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.