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.
Manufacturer communications
2Original wording in English
PACCAR
Reported code forms P3818
Fix As Fail: Engines may have leaking exaust valve guide seals causing high oil consumption, excessive wet soot build up in the DPF/SCR and/or air management system. EGR DTCs P103C, P1711, P1719, or P3818 may set.
PACCAR
Reported code forms P3818
Software Update for DEF Decomposition Pipe Fault - This is a Fix as Fail repair - has determined on vehicles manufacured with a PACCAR MX013 EPA 2013 model year 2013 or 2014 engine, that certain DEF decomposition pipes…
Check vehicle applicability
2A 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.
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.