Buyers of model year 2011 and later Ford trucks with the 6.7L Power Stroke diesel in California, Louisiana, Ohio, Pennsylvania and South Carolina who paid out of pocket for a CP4 fuel pump repair may be members of classes certified September 30, 2026 in a lawsuit alleging Ford sold the trucks with a defective Bosch CP4 high-pressure fuel pump. Ford has not been found liable, and there is no settlement, claim form or anything to file.
Allegations Only · No Settlement Yet
This article describes a pending class action. The claims are unproven allegations. Class certification is not a finding that the CP4 pump is defective or that Ford is liable, and there is no settlement and nothing to claim. This page is informational and is not legal advice.
What Is This About?
The case is Droesser v. Ford Motor Co., No. 2:19-cv-12365, filed August 9, 2019 in the U.S. District Court for the Eastern District of Michigan and assigned to Judge Laurie J. Michelson. The operative complaint, the Third Amended and Consolidated Class Action Complaint, was filed April 28, 2023. On September 30, 2026, Judge Michelson issued two opinions: one granting in part Ford’s motion for summary judgment and one granting in part the plaintiffs’ motion for class certification.The plaintiffs allege that the CP4 high-pressure fuel pump, supplied by Robert Bosch GmbH and used in Ford trucks with the 6.7L Power Stroke diesel engine, is defective. The pump relies on diesel fuel to lubricate its moving parts. The plaintiffs allege that when the cam, roller and tappet are not lubricated enough, the parts grind and shed metal shavings that can reach the engine and cause catastrophic failure requiring a repair of about $9,000. They say the risk was foreseeable because U.S. diesel fuel is less lubricating than European diesel: lubricity is measured by the size of the wear scar a fuel sample leaves in testing, and the U.S. standard allows a wear scar as large as 520, compared with a maximum of 460 under the European standard.
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Who Is in the Certified Classes?
The court certified five state classes. Each covers all persons or entities who bought one or more Class Vehicles in that state, did not sign an arbitration agreement with a dealership, and have paid out of pocket for a CP4 repair. The order designates model year 2011-to-present Ford Power Stroke 6.7L diesel trucks as the Class Vehicles. The California class is limited to vehicles bought for personal, family or household purposes, and the court excluded anyone Ford has already reimbursed for out-of-pocket repair costs.The classes will pursue claims for breach of the implied warranty of merchantability under each state’s law, and the California class also brings a claim under the California Consumers Legal Remedies Act. The court treated the plaintiffs as having withdrawn a separate California Unfair Competition Law claim. Hagens Berman Sobol Shapiro LLP, Hilliard Law and The Miller Law Firm P.C. were appointed class counsel.
What the Judge Did Not Certify
The plaintiffs had asked for seven state classes that would also have included owners whose pumps had not yet failed. The court held that owners without a pump failure have no present injury and lack standing, so it narrowed every class to people who have paid for a repair. It denied certification of proposed Indiana and New Jersey classes because neither had an eligible class representative left: the court found the Indiana claim was filed too late and that the New Jersey representative had not personally paid for a repair.Ford argued that a class action waiver in its new-vehicle warranty booklets barred the classes outside California. The court found Ford had forfeited that argument by waiting until after six years of class discovery to raise it.
How the Court Handled Ford’s Objections
Ford argued that the trucks used four different versions of the CP4 pump, the RPx, RP6, RP7 and RP8, and that each pump failure needs its own inquiry into whether misfueling, water in the fuel, fuel additives or poor maintenance caused it. The court acknowledged there could be some individual disputes over whether a failure came from customer abuse rather than the alleged defect, but found that “the common question of whether the CP4 pump is defective qualitatively predominates over these individual causation questions.”The order notes that in January 2026 Ford recalled RP7-model trucks and promised reimbursement for repair costs tied to failures of one CP4 variant that Ford said was susceptible to biodiesel deposit buildup. Ford argued those owners already had a remedy. The court disagreed but made clear that class members already reimbursed by Ford are excluded.
In the same-day summary judgment ruling, the court dismissed claims the plaintiffs had not defended, including fraudulent concealment and breach of contract claims, and dismissed several named plaintiffs, but it allowed the implied warranty claims of the remaining class representatives and the California consumer protection claim to proceed, finding factual disputes over what Ford knew about the alleged defect and when. The court had earlier refused to exclude the plaintiffs’ defect expert.
What Happens Next?
The certification order gives the parties 30 days, until about October 30, 2026, to propose a form of class notice and a way to deliver it. Under Federal Rule of Civil Procedure 23(c)(2)(B), notice to this kind of class must explain, among other things, that members may ask to be excluded. Under Rule 23(f), a party may ask the appeals court for permission to appeal a class certification order within 14 days after it is entered. Neither order sets a trial date, and there is no settlement.A separate case over the same Bosch CP4 pump in Chevrolet and GMC diesel trucks ended in a settlement; OCA covers it on its GM fuel pump settlement page.
Questions
What is the Ford CP4 fuel pump class action about?
Droesser v. Ford Motor Co., filed in 2019 in federal court in Michigan, alleges the Bosch CP4 high-pressure fuel pump in Ford’s 6.7L Power Stroke diesel trucks is defective because it can shed metal shavings when U.S. diesel fuel does not lubricate it enough, leading to engine failures that the plaintiffs say cost about $9,000 to repair. Ford has not been found liable.
Who is included in the certified Ford CP4 classes?
The September 30, 2026 order certified classes of people and entities who bought a model year 2011 or later Ford 6.7L Power Stroke diesel truck in California, Louisiana, Ohio, Pennsylvania or South Carolina, did not sign a dealership arbitration agreement and paid out of pocket for a CP4 repair. The California class is limited to personal, family or household purchases, and people Ford already reimbursed are excluded.
Is there a Ford CP4 fuel pump settlement?
No. The court certified classes, which lets the claims proceed together, but there is no settlement, judgment, claim form or deadline. The parties must propose a form of class notice to the court first.
Are owners whose CP4 pump has not failed part of the case?
The court excluded owners who have not had a pump failure, holding that they have no present injury, and narrowed every class to buyers who have paid out of pocket for a CP4 repair. Owners in states other than the five certified states are not in any certified class.
Sources
• Opinion and order granting in part and denying in part class certification, ECF No. 201, Droesser v. Ford Motor Co., No. 2:19-cv-12365 (E.D. Mich. September 30, 2026)• Opinion and order granting in part and denying in part Ford’s motion for summary judgment, ECF No. 202 (September 30, 2026)
• Case docket, Droesser v. Ford Motor Co., No. 2:19-cv-12365 (E.D. Mich.)
