EGR Valve Position Performance
Can I Drive?
Short Distances Only
DIY Difficulty
advanced
Estimated Cost
$500-$2,500
What does MAXXFORCE-P0404-13 mean?
The MAXXFORCE-P0404-13 (MaxxForce) diesel fault code means: EGR Valve Position Performance. This is a serious severity code.
Common Symptoms
- CEL
- Derate
Probable Causes (Ranked by Likelihood)
- Sticking EGR valve Very Likely
- Failed position sensor Likely
Step-by-Step Diagnostic Procedure
Sweep valve with service tool.
Replace valve assembly.
Frequently Asked Questions
What is P0404 on a MaxxForce 13 (12.4L)?
P0404 on a MaxxForce 13 (12.4L) (2008-2014) indicates: EGR Valve Position Performance. This is a known fault code on the MaxxForce engine family and typically points to the causes listed above.
Can I drive with P0404 on my MaxxForce?
Only drive short distances to reach a repair facility. Continued operation may cause further damage or progressive derate.
How much does it cost to fix MaxxForce P0404?
Repair cost is typically $500-$2,500 depending on the underlying cause and shop rate. Many MaxxForce faults (especially EGR cooler, head bolt, and VGT repairs) are major expenses that drove fleet owners to repower with Cummins or retire these trucks early.