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Ford Diesel Trucks with Bosch CP4 Fuel Injection Pumps Class Action

2018 Ford F-250 Super Duty

The complaint for this class action brings up the problem of the Bosch CP4 high-pressure fuel injection pump, which is supposedly “standard in 2011-present Ford Super Duty diesel trucks, and which unbeknownst to consumers is incompatible with American diesel fuel.” The complaint alleges that with this pump, metal rubs against metal, distributing metal shards throughout the fuel delivery system until it fails. 

The class for this action is all persons or entities in Florida who are current or former owners or lessees of 2011 to the present Ford-manufactured diesel-fuel vehicles equipped with a 5.7L Power Stroke engine or a CP4 fuel injection pump system.

The problems occur with the fuel pumps, the complaint says, because US diesel fuel is different from European and cannot properly lubricate the pumps. The complaint says that “the CP$ pump is not built to withstand the specifications for U.S. diesel fuel in terms of lubrication or water content, and it struggles to lift a volume of fuel sufficient to lubricate itself. As a result, the pump is forced to run dry and destroy itself as air bubbles allow metal to rub against metal.”

What happens then? “The pump secretly deposits metal shavings and debris throughout the fuel injection system and the engine until it suddenly and cataclysmically fails without warning, further contaminating the fuel deliver system with larger pieces of metal. Such catastrophic failure often causes the vehicle to shut-off while in motion and renders it unable to be restarted…”

The complaint says, “The failure of a CP4 pump requires repair or replacement of the entire high-pressure fuel system, including the pump, fuel injectors, fuel rails, and injection lines.” Repair bills range from $8,000 to $20,000.

Ford blames the problems on “fuel contamination,” which is not covered by the warranty because the problem is “not caused by Ford.” However, the complaint alleges that the US auto industry has known about the incompatibility of US diesel fuel with high-pressure fuel injection systems for a long time—since, in fact, before Ford began putting the CP4 in its trucks.

The complaint has a long list of plaintiffs, but by example, one of them, Rickey J. Tremblay, experienced the catastrophic failure of his 2012 Ford F-250 with only 25,000 miles on the vehicle. The truck had shut off while he was driving it and would not restart. He had it towed to the original dealership, which told him he had put “bad fuel” in the truck and that Ford would not be covering the repair. Tremblay then had the truck towed to another place, “where he was one of 700 people that the dealership had the parts on backorder for.” 

The final repair bill was $6,500 for the parts and labor plus additional amounts for all the towing and for a replacement rental which he needed to use for more than a month. 

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