Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2021EDGE SE, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 622 (ENGINE SYSTEM - GENERAL INFORMATION)GENERAL PROCEDURESPISTON SELECTION
2021 Ford Edge SE, 4WD
Piston Selection
2021 Ford Edge SE, 4WDSECTION Piston Selection
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
For information on Ford Color Coded Illustrations refer to OEM COLOR CODING INFORMATION
Check
- Refer to specifications for piston selection. Refer to: 2.7L EcoBoost Specifications . Refer to: 3.3L Duratec-V6 Specifications . Refer to: 3.5L V6 PowerBoost (CN) Specifications . Refer to: 3.5L V6 PowerBoost (CN) Specifications . Refer to: 3.0L Power Stroke Diesel Specifications .
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NOTE: The cylinder bore must be within the specifications for taper and out-of-round before fitting a piston.
- Measure the cylinder bore in 2 directions.
- Select a piston size based on the cylinder bore.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.