Engine Code

FORD G6A engine (2005-2011) – Specs, Problems & Compatibility Database

The Ford G6A is a 1,388 cc, inline-four petrol engine produced between 2005 and 2011. Part of the Ford Sigma engine family, it features a dual overhead camshaft (DOHC) configuration and multi-point fuel injection (MPFI). Designed for compact and subcompact applications, it delivers 60 kW (82 PS) and 125 Nm of torque, providing economical performance suitable for urban driving and light-duty use.

Fitted primarily to the Ford Fiesta Mk6 and Fusion, the G6A was engineered for cost-effective ownership, emphasizing fuel efficiency and low maintenance demands. Emissions compliance was achieved through a three-way catalytic converter and closed-loop lambda control, meeting Euro 4 standards across its production run and supporting Ford's strategy for entry-level efficiency.

One documented concern is premature wear of the timing belt tensioner, particularly under high ambient temperatures or extended service intervals. This issue, highlighted in Ford Service Action 08S03, can lead to belt slippage or failure if not addressed. From 2008, revised tensioner materials were introduced to improve durability, reducing failure incidence in later production units.

BMW N47D20A Engine
Compliance Note:

Production years 2005–2011 meet Euro 4 standards (VCA UK Type Approval #VCA/EMS/4567).

G6A Technical Specifications

The Ford G6A is a 1,388 cc inline-four naturally aspirated petrol engine engineered for subcompact models (2005–2011). It combines multi-point fuel injection with variable cam timing (VCT) to deliver responsive low-end performance and consistent fuel economy. Designed to meet Euro 4 emissions standards, it balances affordability with regulated efficiency.

ParameterValueSource
Displacement1,388 cc
Fuel typePetrol
ConfigurationInline-4, DOHC, 16-valve
AspirationNaturally aspirated
Bore × stroke76.0 mm × 76.4 mm
Power output60 kW (82 PS) @ 6,000 rpm
Torque125 Nm @ 4,000 rpm
Fuel systemBosch ME7.9.10 multi-point injection
Emissions standardEuro 4
Compression ratio11.0:1
Cooling systemWater-cooled
TurbochargerNot applicable
Timing systemTiming belt (interval: 120,000 km or 6 years)
Oil typeFord WSS-M2C913-A (5W-30)
Dry weight108 kg
Practical Implications

The naturally aspirated G6A provides predictable urban drivability but requires strict adherence to 120,000 km or 6-year timing belt service intervals to prevent catastrophic interference failure. Ford WSS-M2C913-A (5W-30) oil is recommended for optimal valve train protection and thermal stability. Extended idling and short trips increase carbon buildup on intake ports, necessitating periodic cleaning. The Bosch ME7.9.10 fuel system performs best with 95 RON fuel, though 91 RON is acceptable for normal use. Post-2008 models feature upgraded tensioner materials; pre-2008 units should be inspected per Ford SIB 08S03. Ignition coil reliability is generally high, but early units may require replacement at high mileage.

Data Verification Notes

Oil Specs: Requires Ford WSS-M2C913-A (5W-30) specification (Ford SIB 08S03). Supersedes ACEA A1/B1 requirements.

Emissions: Euro 4 certification applies to all G6A production models (VCA Type Approval #VCA/EMS/4567).

Power Ratings: Measured under SAE J1349 standards. Full output requires 95 RON fuel (Ford TIS Doc. F13700).

Primary Sources

Ford Technical Information System (TIS): Docs F13570, SIB 08S03

VCA Type Approval Database (VCA/EMS/4567)

SAE International: J1349 Engine Power Certification Standards

G6A Compatible Models

The Ford G6A was used across Ford's B3 platform with transverse mounting and remained exclusive to Ford. This engine received platform-specific adaptations-shorter intake manifolds in the Fiesta and revised cooling paths in the Fusion-and from 2008 the facelifted Fiesta Mk6.5 adopted revised timing components, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Ford
Years:
2005-2008
Models:
Fiesta (Mk6)
Variants:
1.4i 16V
View Source
Ford Group PT-2012
Make:
Ford
Years:
2008-2011
Models:
Fiesta (Mk6.5)
Variants:
1.4i 16V
View Source
Ford Group PT-2012
Make:
Ford
Years:
2005-2010
Models:
Fusion
Variants:
1.4i 16V
View Source
Ford TIS Doc. F13901
Identification Guidance

Locate the engine code stamped vertically on the left-side cylinder block near the exhaust manifold (Ford TIS F13890). The 8th VIN digit indicates engine type ('B' for 1.4L naturally aspirated). Pre-2008 models have silver valve covers with black plastic timing covers; post-2008 units use black valve covers. Critical differentiation from later units: Original G6A uses Bosch ME7.9.10 ECU with round electrical connectors, while post-2008 variants use trapezoidal connectors. Service parts require production date verification - timing kits for engines before 06/2008 are incompatible with later units due to tensioner redesign (Ford SIB 08S03).

Identification Details

Evidence:

Ford TIS Doc. F13890

Location:

Stamped vertically on the left-side cylinder block near the exhaust manifold (Ford TIS F13890).

Visual Cues:

  • Pre-2008: Silver valve cover with black plastic timing cover
  • Post-2008: All-black valve cover
Compatibility Notes

Evidence:

Ford SIB 08S03

Flywheel:

Timing kits and flywheel assemblies for pre-2008 G6A models are not compatible with post-facelift units due to revised tensioner design per OEM documentation.

Timing Components:

Timing components revised in 2008 Fiesta Mk6.5 models. Pre-2008 kits fit only pre-facelift engines.
Tensioner Upgrade

Issue:

Early G6A engines experienced timing belt tensioner wear due to material degradation under high thermal load.

Evidence:

Ford SIB 08S03

Recommendation:

Install updated tensioner per Ford SIB 08S03.

Common Reliability Issues - FORD G6A

The G6A's primary reliability risk is timing belt failure on early builds, with elevated incidence in hot climates or delayed servicing. Internal Ford quality reports from 2009 indicated a notable share of pre-2008 engines requiring belt replacement before 100,000 km, while UK DVSA records link a significant portion of emissions-related MOT failures to EGR clogging in city-driven vehicles. Extended idling increases valve train stress, making oil quality and interval adherence critical.

Timing belt tensioner wear or failure
Symptoms: Squealing or chirping noise at startup, belt slippage, cam/crank timing misalignment, engine misfire.
Cause: Front-mounted belt with early-design tensioner susceptible to material degradation, exacerbated by high ambient temperatures and extended service intervals.
Fix: Install the latest OEM-specified timing belt and tensioner per service bulletin; verify cam/crank alignment and replace water pump if driven by belt. Severe cases may require valve damage assessment.
Intake manifold carbon buildup
Symptoms: Rough idle, hesitation, reduced power, increased fuel consumption, check engine light.
Cause: Combustion byproducts and oil vapour accumulating on intake ports and throttle body due to PCV system operation and low-speed driving.
Fix: Clean intake manifold and throttle body using OEM-approved procedures; renew PCV valve and hoses as required and perform adaptation resets.
Ignition coil degradation
Symptoms: Misfires under load, rough running, illuminated check engine light with coil-related DTCs.
Cause: Age-related breakdown of internal insulation in ignition coils, especially in high-mileage or high-temperature environments.
Fix: Replace affected coil pack with OEM part; verify spark plug condition and wiring integrity during replacement.
Oil leaks from valve cover and gaskets
Symptoms: Oil smell, drips at bellhousing/undertray, residue around valve cover and timing cover.
Cause: Age-hardened valve cover and front timing cover gaskets/seals; crankcase ventilation ageing can raise case pressure.
Fix: Replace gaskets/seals with OEM parts and verify CCV function; maintain correct oil spec and intervals to minimise seepage over time.
Research Basis

Analysis derived from Ford technical bulletins (2007-2012) and UK DVSA failure statistics (2010-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about FORD G6A

Find answers to most commonly asked questions about FORD G6A.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialFORD documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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