1. Component failure and availability: My 2021 Newmar Bay Star 3626 motorhome, with a Ford 7.3L Godzilla V8 on an [[redacted]] chassis, suffered serious internal engine damage at approximately 15,000 miles. Metal was found in the oil and filter, and engine replacement was deemed necessary. Camshaft/lifter failure is suspected, but the engine was not disassembled to confirm the exact cause. Photographs and service records may be available; availability of failed parts must be confirmed. 2. Safety risk: The engine...
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developed a persistent misfire while traveling. We drove approximately 200 miles before the problem was fully evaluated. Sudden engine failure in a large motorhome can cause loss of propulsion at highway speed, inability to accelerate in traffic, or a dangerous roadside breakdown, risking occupants and other motorists. 3. Confirmation: Ford diagnostic testing confirmed a persistent cylinder 3 misfire. Codes included P0300, P0303, P0304, P0308 and P0316. Swapping the spark plug and ignition coil/wire with another cylinder did not move the misfire. Metal was found in the oil and filter. Engine replacement was recommended. 4. Inspection: A Ford dealership/service facility inspected the vehicle and performed diagnostic testing. The engine was not disassembled for a complete internal inspection. 5. Warnings and symptoms: A flashing check-engine light and cylinder 3 misfire appeared before the engine damage was fully evaluated. The misfire persisted despite swapping ignition components. The problem occurred during travel from [[redacted]] to [[redacted]]. Metal was subsequently found in the oil and filter. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)