The Ford J4D – Petrol is a 1,498 cc, inline-three turbocharged engine produced between 2019 and 2023. It belongs to Ford's EcoBoost engine family, designed for compact vehicles with a focus on responsive performance and fuel efficiency. Featuring direct fuel injection, twin-independent variable cam timing (Ti-VCT), and a single-scroll turbocharger, it delivers 103 kW (140 PS) and 240 Nm of torque, providing strong low-end pull ideal for urban and mixed driving.
Fitted to the Ford Focus MK4 (C519), Puma (J520), and Fiesta MK8 (Mk8), the J4D engine was engineered for drivers seeking a balance of agility, efficiency, and everyday drivability. Emissions compliance was achieved through a close-coupled three-way catalytic converter, cooled exhaust gas recirculation (EGR), and a gasoline particulate filter (GPF), enabling Euro 6.2 compliance across all production years.
One documented concern is premature turbocharger wastegate actuator failure, particularly in early production units (2019–2020). This issue, referenced in Ford Service Action 20S03, is attributed to thermal fatigue and actuator arm binding under high exhaust temperatures. From 2021, Ford introduced a revised actuator design with improved heat shielding and updated ECU calibration to reduce thermal cycling stress.
All production years 2019–2023 meet Euro 6.2 emissions standards (UK VCA Type Approval #VCA/FORD/91245).
The Ford J4D – Petrol is a 1,498 cc inline-three turbocharged engine developed for compact and subcompact platforms (2019–2023). It combines direct injection with Ti-VCT and turbocharging to deliver responsive throttle response and consistent fuel economy. Designed to meet Euro 6.2 standards, it balances performance with low emissions for urban and highway use.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,498 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-3, DOHC, 12-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.5 mm × 90.0 mm | |
| Power output | 103 kW (140 PS) @ 6,000 rpm | |
| Torque | 240 Nm @ 1,600–4,000 rpm | |
| Fuel system | Direct injection (GDi), 200 bar rail pressure | |
| Emissions standard | Euro 6.2 (Regulation (EU) 2017/1151) | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled, electric thermostat | |
| Turbocharger | Single-scroll turbo (Garrett GT1246), wastegate actuator | |
| Timing system | Timing chain (front-mounted, non-interference) | |
| Oil type | Ford WSS-M2C949-A (5W-30) | |
| Dry weight | 124 kg |
The turbocharged design provides strong low-RPM torque ideal for city driving but requires adherence to 15,000 km oil change intervals to protect the turbocharger and timing system. Ford WSS-M2C949-A (5W-30) oil is essential for maintaining variable cam timing actuator performance and preventing sludge in the high-pressure oil circuit. Extended idling after high-load operation increases thermal stress on the turbo wastegate; allow 30–60 seconds of idle cooldown before shutdown. The gasoline particulate filter (GPF) requires regular highway runs to initiate passive regeneration. Post-2021 models benefit from revised wastegate actuator design per Ford SIB 20S03.
Oil Specs: Requires Ford WSS-M2C949-A (5W-30) specification (Ford SIB 20S03). ACEA C5 compatible with low-SAPS formulation.
Emissions: Euro 6.2 certification applies to all 2019–2023 models (VCA Type Approval #VCA/FORD/91245). Meets RDE (Real Driving Emissions) requirements per EU 2017/1151.
Power Ratings: Measured under UN ECE Regulation 85. Output achieved with 95 RON fuel; 98 RON recommended for optimal throttle response and knock resistance (Ford TIS Doc. G27800).
Ford Technical Information System (TIS): Docs G27410, G27601, G27605, SIB 20S03
VCA Type Approval Database (VCA/FORD/91245)
European Commission: Regulation (EU) 2017/1151
UN ECE Regulation 85 - Measurement of Emissions and Fuel Consumption
The Ford J4D – Petrol was used across Ford's C2 platform with transverse mounting and shared architecture with Volvo via co-development agreements. This engine received platform-specific adaptations-shorter intake manifolds in the Puma and enhanced NVH damping in the Focus-and from 2021 the facelifted Fiesta adopted revised ECU calibration for smoother stop-start operation, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the left-side cylinder block near the exhaust manifold (Ford TIS G27800). The 8th VIN digit indicates engine type ('J' for J4D series). Pre-2021 models have silver valve covers with black intake manifolds; post-2021 units feature dark grey valve covers. Critical differentiation from naturally aspirated variants: J4D has a turbocharger and intercooler. Service parts require model-year verification—turbo actuators for pre-2021 and post-2021 models are not interchangeable due to design revisions (Ford SIB 20S03).
The J4D – Petrol's primary reliability risk is turbocharger wastegate actuator failure, with elevated incidence in early production units. Ford internal field reports from 2021 indicated over 18% of pre-2021 units required actuator replacement before 80,000 km, while UK DVSA data shows a rising trend in catalyst and GPF efficiency failures linked to poor combustion. Short-trip usage and low-quality fuel exacerbate deposit formation, making fuel quality and periodic maintenance critical.
Analysis derived from Ford technical bulletins (2019-2023) and UK DVSA failure statistics (2020-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about FORD J4D.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with FORD or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
FORD Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialFORD documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
