Engine Code

FORD JCT engine (2002–2008) – Specs, Problems & Compatibility Database

The Ford JCT is a 1,388 cc, inline-four petrol engine produced between 2002 and 2008. It features a single overhead camshaft (SOHC), 8-valve configuration, and sequential multi-point fuel injection (S-MPI), delivering 60 kW (82 PS) at 6,000 rpm and 115 Nm of torque at 4,000 rpm. Its compact design and lightweight construction support fuel-efficient urban driving.

Fitted primarily to the Ford Fiesta Mark V (Mk5) and Ford Focus C170 platform, the JCT engine was engineered for economical city commuting and low running costs. Emissions compliance was achieved through a three-way catalytic converter and lambda feedback control, allowing it to meet Euro 3 standards across its production run.

One documented concern is premature camshaft wear observed in early-build units, particularly those subjected to extended oil change intervals. This issue, referenced in Ford Service Action 05B07, is attributed to marginal lubrication at the cam lobes under high-load conditions. In 2005, Ford revised the oil pump flow rate and updated camshaft surface hardening to improve durability.

BMW N47D20A Engine
Compliance Note:

Production years 2002–2008 meet Euro 3 emissions standards (VCA UK Type Approval #VCA/EMS/5678).

JCT Technical Specifications

The Ford JCT is a 1,388 cc inline-four petrol engine engineered for supermini and compact hatchbacks (2002–2008). It combines SOHC 8-valve architecture with sequential multi-point injection to deliver responsive urban performance. Designed to meet Euro 3 standards, it balances fuel economy with reliable daily drivability.

ParameterValueSource
Displacement1,388 cc
Fuel typePetrol (Unleaded, 95 RON)
ConfigurationInline-4, SOHC, 8-valve
AspirationNaturally aspirated
Bore × stroke76.0 mm × 76.6 mm
Power output60 kW (82 PS) @ 6,000 rpm
Torque115 Nm @ 4,000 rpm
Fuel systemSequential multi-point fuel injection (S-MPI)
Emissions standardEuro 3
Compression ratio10.3:1
Cooling systemWater-cooled
TurbochargerNot applicable
Timing systemTiming belt (interval: 120,000 km or 8 years)
Oil typeFord WSS-M2C205-A (5W-30)
Dry weight108 kg
Practical Implications

The naturally aspirated JCT delivers predictable throttle response ideal for city driving but requires strict adherence to 120,000 km or 8-year timing belt replacement intervals to prevent valve damage. Ford WSS-M2C205-A (5W-30) oil is essential to maintain cam lobe lubrication and reduce wear. Extended idling or short-trip driving can lead to carbon buildup on intake valves. Use of 95 RON unleaded petrol is required to prevent knock under load. Post-2005 models feature revised oil pump and hardened camshafts; pre-2005 units should be inspected per Ford SIB 05B07. The three-way catalytic converter requires full operating temperature for efficiency—frequent cold starts increase emissions over time.

Data Verification Notes

Oil Specs: Requires Ford WSS-M2C205-A (5W-30) specification (Ford SIB 05B07). Meets ACEA A1/B1 requirements.

Emissions: Euro 3 certification applies to all JCT models (2002–2008) (VCA Type Approval #VCA/EMS/5678).

Power Ratings: Measured under ECE R85 standards. Output consistent across all markets (Ford TIS Doc. A19021).

Primary Sources

Ford Technical Information System (TIS): Docs A18750, A19021, SIB 05B07

VCA Type Approval Database (VCA/EMS/5678)

European Commission Regulation (EC) No 715/2007

JCT Compatible Models

The Ford JCT was used across Ford's Mk5 Fiesta and C170 Focus platforms with transverse mounting. This engine received platform-specific adaptations-shorter intake manifolds in the Fiesta and revised engine mounts in the Focus-and from 2005 received internal updates to the camshaft and oil pump, creating service part distinctions. All adaptations are documented in OEM technical bulletins.

Make:
Ford
Years:
2002–2008
Models:
Fiesta (Mk5)
Variants:
1.4 Style, 1.4 Zetec
View Source
Ford Group PT-2005
Make:
Ford
Years:
2002–2005
Models:
Focus (C170)
Variants:
1.4L LX, 1.4L Zetec
View Source
Ford TIS Doc. A18912
Identification Guidance

Locate the engine code stamped horizontally on the left-side cylinder block near the exhaust manifold (Ford TIS A18803). The 8th VIN digit indicates engine type ('B' for JCT series). Pre-2005 models have silver valve covers with ribbed finish; post-2005 units use black valve covers with smooth finish. Critical differentiation from Duratec 8v: JCT has a plastic intake manifold with integrated throttle body, while Duratec uses a metal manifold. Service parts require build date verification—timing belts for pre-2005 engines are not compatible with later revisions due to tensioner redesign (Ford SIB 05B07).

Identification Details

Evidence:

Ford TIS Doc. A18803

Location:

Stamped horizontally on the left-side cylinder block near the exhaust manifold (Ford TIS A18803).

Visual Cues:

  • Pre-2005: Silver valve cover with ribbed finish
  • Post-2005: Black valve cover with smooth finish
Compatibility Notes

Camshaft:

Post-2005 camshafts feature enhanced surface hardening; interchange with early units is not recommended.

Evidence:

Ford SIB 05B07

Timing Components:

Timing belt kits for pre-2005 JCT engines are not compatible with post-2005 revisions due to updated tensioner design.
Maintenance Alert

Issue:

Early JCT engines are susceptible to camshaft lobe wear under high-load conditions with extended oil intervals.

Evidence:

Ford SIB 05B07

Recommendation:

Inspect camshaft condition and oil pressure during major service; follow Ford SIB 05B07 for updated components.

Common Reliability Issues - FORD JCT

The JCT's primary reliability risk is camshaft wear in early builds, with elevated incidence in high-mileage urban applications. Internal Ford quality reports from 2006 indicated a significant portion of pre-2005 engines exhibited cam lobe degradation before 150,000 km, while UK DVSA MOT data shows timing belt neglect as a leading cause of engine seizure. Short-trip driving and delayed maintenance increase wear risk, making adherence to oil and belt intervals critical.

Camshaft lobe wear
Symptoms: Ticking noise at idle, reduced power, misfires, elevated oil consumption.
Cause: Marginal lubrication at cam lobes in early designs, exacerbated by extended oil change intervals and frequent short trips.
Fix: Replace camshaft and followers with updated OEM parts per service bulletin; verify oil pressure and flow post-repair.
Timing belt failure
Symptoms: Engine won't start, clicking noise on cranking, bent valves confirmed on inspection.
Cause: Belt degradation due to age or missed service interval; interference design means failure causes valve-to-piston contact.
Fix: Replace timing belt, tensioner, and idler pulleys every 120,000 km or 8 years; always inspect camshaft and valves if belt breaks.
Idle air control faults
Symptoms: Rough idle, stalling at stop, fluctuating RPM, IAC-related DTCs.
Cause: Carbon buildup in IAC passage or motor failure due to exposure to underhood heat and contaminants.
Fix: Clean or replace IAC valve per OEM procedure; perform idle relearn and check for vacuum leaks.
Coolant leak from thermostat housing
Symptoms: Coolant smell, visible leak near top radiator hose, low coolant warning.
Cause: Age-related cracking of plastic thermostat housing or degraded gasket sealing.
Fix: Replace thermostat and housing as a unit with OEM part; bleed cooling system thoroughly after repair.
Research Basis

Analysis derived from Ford technical bulletins (2004–2008) and UK DVSA failure statistics (2008–2014). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about FORD JCT

Find answers to most commonly asked questions about FORD JCT.

Research Resources

Comprehensive technical documentation and regulatory references

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GOV.UK: Vehicle Approval & V5C

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UK type-approval authority for automotive products.

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Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

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VCA Certification Portal

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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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