EcoBoost Engine Coolant Intrusion & Intake Valve Failures (2021–2022)

• Affected Vehicles: Bronco, F-150, Explorer (2.7L/3.0L Nano and 1.5L/1.6L/2.0L variants).
  
  
• Sales Volume Data: Moderate to high. Explorers sell over 200,000 units annually; Broncos sell approximately 100,000+ units annually.
  
  
• NHTSA Complaint Volumes & Consumer Metrics: NHTSA recall 24V-444 (concerning the 2.7L/3.0L intake valves) affected over 90,000 vehicles. Coolant intrusion complaints number in the hundreds to thousands, heavily concentrated in "engine and engine cooling" categories.
  
  
• Class Action & Legal Claims: Class actions are well-established.  These claims are top-tier because the defects result in catastrophic engine failure (intake valves) or severe drivability/fire risks (coolant intrusion). Loss of motive power is a primary safety defect, triggering lemon law presumptions rapidly.
  
  
  
  
    
  Breach of Express Warranty Analysis
  
  
  
  
  The Warranty: Ford's New Vehicle Limited Warranty covers engine block, cylinder heads, and all internal lubricated parts.
  Demonstrating Breach: Plaintiffs argue breach occurs when Ford implements "Band-Aid" fixes—such as installing coolant level sensors or merely replacing the engine with another block containing the identical defective design—rather than providing a permanent cure.
  
  Breach of Implied Warranty of Merchantability Analysis
  
  Fitness for Ordinary Purpose: An engine that consumes its own coolant or drops valves into the cylinders—leading to highway stalling and total failure—is fundamentally unfit for basic transportation.
  
  Omissions and Fraud: Consumers allege Ford aggressively marketed the EcoBoost line for its durability and efficiency while concealing known block porosity and gasket design flaws. Selling a vehicle with a known catastrophic engine defect without disclosing the risk of sudden highway stalling supports strong claims under state consumer protection laws.
  
  Establishing Defect at Sale: The use of improper valve metallurgy or flawed block casting designs proves the defect existed at the point of sale, regardless of when the engine eventually failed. 
  
  Consequences  Engine replacements take vehicles out of service for weeks creating substantial inconvenience
  and loss of value.  
  
  
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