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.
2021 Ford GTFACTORY OEM SERVICE PROCEDURE
Engine - Overview: Overview
The 3.5L Ecoboost (4V) is a V-6 engine with the following features:
- Dual overhead camshafts
- Four valves per cylinder
- Dual fuel system: Gasoline Turbocharged Direct Injection (GTDI) with Port Fuel Injection (PFI)
- Aluminum cylinder heads
- An aluminum, 60-degree V-cylinder block
- Twin independent variable cam timing (Ti-VCT)
- An electronic ignition system with 6 ignition coils
In addition to these typical 3.5L Ecoboost features, the engine for the GT has the following unique content:
- Dry sump oil pan with a oil tank behind the engine
- Split ported turbo oil drain scavenging pump and dual oil pan scavenging pump - External 4 stage dry sump oil pump on the right side of the engine with integrated oil to coolant cooler and oil filter adapter
- Camshafts
- Crankshaft
- Viscous crankshaft damper
- Coolant pump
- Cylinder heads
- Cylinder head gasket
- Cylinder head restricting orifice
- EVAP lines
- Exhaust manifolds
- External oil to air cooler behind the right rear wheel
- Front and rear accessory drive
- High temp turbocharger hardware and gaskets
- Intake manifold
- LH timing chain tensioner arm
- Oil pan with internal oil thermostat and screen and covers
- Oil tank lines
- Oil transfer tube with inline screen and manifold.
- PCV lines
- Pistons
- Piston oil cooling jets
- Connecting rods
- Throttle body
- Timing chain
- Timing chain tensioners
- Turbochargers
- Turbocharger cooling and oil lines
- Valve springs
Engine Cylinder IdentificationΒ
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
