2011–2016 Ford F-250: Sudden no-start or stall (6.7L Power Stroke CP4.2 fuel pump)
Likely causes, ranked
- High-pressure fuel pump failure (CP4.2)Shop
- Water or contaminated fuelDIY
Real-owner fix counts will appear here as reports come in.
DIY or shop: See DIY or shop section
Parts to check
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Symptom: A sudden stall or crank-no-start, often with fuel pressure codes. When the pump fails internally, metal can spread through the injectors and fuel rails.
Likely causes
- CP4.2 pump wear. Powerstroke.org and Ford-Trucks.com owners describe failures that send metal debris downstream, which makes the repair far more expensive.
- Water or bad fuel. Owners link many failures to water or contaminated fuel. They recommend draining the water separator often and buying fuel from busy stations.
- Prevention kits. Bypass kits don't stop the pump from failing but can keep debris out of the injectors. Some owners report fuel pressure codes after installing them incorrectly.
DIY or shop?
Shop. A full fuel system replacement after a failure is a big job.
Useful steps
- Drain the water separator on schedule.
- Replace fuel filters on time.
- If the pump fails, have the whole fuel system inspected for metal.
Vehicle focus: 2011–2016 Ford F-250.
Safety / mechanic note
A stall at highway speed while towing is dangerous. Verify with a mechanic or dealer.
Recalls & service bulletins
No recalls or service bulletins are listed for this page yet.
NHTSA complaints: Count unavailable: too few NHTSA complaints matched this issue under the model names we could query to give a reliable number (checked 2026-10-15).
Always check your VIN for open recalls at nhtsa.gov/recalls.
Sources
What actually fixed it?
Had this problem? Tell other owners what the real fix was. Reports are counted above; we never show made-up numbers.