CP4 high-pressure fuel pump failure (2011–2023 (litigation); 2020–2022 (recall))
Major repairThe 6.7 uses a Bosch CP4-family high-pressure fuel pump. A class action (Droesser v. Ford, E.D. Mich.) alleges the pump can shed metal into the fuel system when fuel lubricity or contamination is poor; a partial class covering five states was certified in 2026, with no finding on liability. Separately, recall 24V-957 addresses biodiesel deposits on the pump’s roller components in 2020–2022 trucks.[13][11][14]
Symptoms
- Sudden loss of power or limp mode
- Hard start or no start after stalling
- Fuel-pressure related warning or trouble codes
Check before buying
- Run the VIN for open recalls 24V-957 and 26V-158
- Ask for fuel-filter service records at Ford’s interval
- Avoid trucks with a history of water in fuel or off-spec fuel