Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
4Original wording in English
FORD
FORD TRUCKS: ON SOME TRUCKS EQUIPPED WITH A 6.4L DIESEL ENGINE, WITH LESS THAN 5000 MILES, MAY EXHIBIT DIAGNOSTIC TROUBLE CODES P0404 AND/OR P1335. THIS MAY BE DUE TO WELD SLAG/DEBRIS, FROM TURBO UP-PIPE MANUFACTURING PROCESS, BEING STUCK IN THE EGR VALVE AND PREVENTING IT FROM SEATING PROPERLY. MODELS F SUPER DUTY-F250-F550. *P…
FORD
FORD: 6.4L DIESEL ENGINE. VEHICLES BUILT BETWEEN 1/3/08 AND 5/5/08 DIAGNOSTIC TROUBLE CODES (DTCS) P0128, P0196, P1335, P0404 AND P0406. *PE
FORD
2008 F-SUPER DUTY 6.4L DIESEL - VREF CODES P1335, P0193, P0642, P0643, OR P0652. *NJ
FORD
6.0L--MIL ON--P0401, P0402, P0404, P1335--LACK OF POWER OR SURGE WITH SOME 2003-2007 F-SUPER DUTY, 2003-2005 EXCURSION AND 2004-2008 E-SERIES VEHICLES. *NJ
Check vehicle applicability
56A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.