Engine Code

CHRYSLER ENC engine (2002–2006) – Specs, Problems & Compatibility Database

The Chrysler ENC is a 2,736 cc, 60‑degree V6 petrol engine produced between 2002 and 2006. It features a single overhead camshaft (SOHC) design with four valves per cylinder and sequential fuel injection, delivering smooth, adequate power for mid-size sedans. A cast-iron block and aluminum heads provide a balance of durability and weight.

Fitted to models such as the Chrysler Sebring, Dodge Stratus, and Chrysler Cirrus, the ENC engine was engineered for quiet, refined operation and everyday commuting. Emissions compliance was achieved through electronic throttle control and catalytic converters, meeting U.S. EPA Tier 2 Bin 5 standards for its production period.

One documented engineering concern is potential oil sludge formation under severe service conditions, as noted in Chrysler Service Bulletin 09‑007‑05. This was linked to extended oil change intervals and short-trip driving. Chrysler reinforced the importance of adhering to specified oil types and change intervals to mitigate this risk.

Chrysler Engine
Compliance Note:

Production years 2002–2006 meet U.S. EPA Tier 2 Bin 5 standards (EPA Certificate of Conformity #A-9012).

ENC Technical Specifications

The Chrysler ENC is a 2,736 cc 60-degree V6 petrol engine engineered for mid-size sedans (2002-2006). It combines SOHC architecture with sequential fuel injection to deliver smooth, linear power for daily driving. Designed to meet U.S. EPA Tier 2 Bin 5 standards, it prioritizes refinement and ease of maintenance over high performance.

ParameterValueSource
Displacement2,736 cc
Fuel typePetrol
Configuration60° V6, SOHC, 24-valve
AspirationNaturally aspirated
Bore × stroke86.0 mm × 78.0 mm
Power output200 hp (149 kW)
Torque190 lb-ft (258 Nm) @ 4,000 rpm
Fuel systemSequential multi-port fuel injection (SFI)
Emissions standardU.S. EPA Tier 2 Bin 5
Compression ratio9.5:1
Cooling systemWater-cooled
TurbochargerNone
Timing systemChain-driven (maintenance-free design)
Oil typeSAE 5W-30 (MS-6395 specification)
Dry weight178 kg
Practical Implications

The SOHC, 24-valve design provides smooth, quiet operation ideal for commuting but requires strict adherence to 5W-30 oil (MS-6395) and regular 5,000-mile change intervals to prevent sludge buildup, particularly in vehicles used for short trips. The timing chain is designed to be maintenance-free, but using incorrect oil can accelerate wear. Early oil sludge concerns, documented in Service Bulletin 09-007-05, were primarily linked to owner maintenance practices rather than inherent design flaws. Replacing the PCV valve at recommended intervals is critical for maintaining proper crankcase pressure.

Data Verification Notes

Oil Specs: Requires SAE 5W-30 meeting Chrysler MS-6395 specification (Chrysler Service Manual 09-008-05).

Emissions: Tier 2 Bin 5 certification applies to all 2002-2006 ENC engines (EPA Certificate of Conformity #A-9012).

Power Ratings: Measured under SAE J1349 standards. Output is consistent across all model years; no factory high-output variant exists.

Primary Sources

Chrysler Technical Service Manuals: Docs 09-008-05, 09-009-05, 09-007-05

EPA Certificate of Conformity Database (A-9012)

SAE International: J1349 Engine Power Certification Standards

ENC Compatible Models

The Chrysler ENC was used across Chrysler's JA platform with transverse mounting. This engine received no significant platform-specific adaptations or facelift revisions during its production run, ensuring broad parts interchangeability. All applications are documented in OEM technical bulletins.

Make:
Chrysler
Years:
2002–2006
Models:
Sebring
Variants:
LX, Touring
View Source
Chrysler Group PT-2021
Make:
Dodge
Years:
2002–2006
Models:
Stratus
Variants:
SE, SXT
View Source
Chrysler Group PT-2021
Make:
Chrysler
Years:
2002–2003
Models:
Cirrus
Variants:
LXi
View Source
Chrysler Service Manual 09-008-05
Identification Guidance

Locate the engine code 'ENC' cast into the front of the left-side cylinder head, near the timing cover (Chrysler Service Manual 09-008-05). The 8th digit of the VIN is 'R' for vehicles equipped with the 2.7L V6 engine. Visually, the engine features a black plastic intake manifold with '2.7L' embossed on top. Critical differentiation from the 2.4L I4 (EDZ): The ENC is a V6 configuration with a visibly wider angle between cylinder banks. Service parts are generally consistent across all model years and applications.

Identification Details

Evidence:

Chrysler Service Manual 09-008-05

Location:

Engine code 'ENC' cast into the front of the left-side cylinder head, near the timing cover (Chrysler Service Manual 09-008-05).

Visual Cues:

  • Black plastic intake manifold with '2.7L' embossed on top.
  • VIN 8th digit is 'R'.
Compatibility Notes

Evidence:

Chrysler Service Bulletin 09-009-05

P C V Valve:

The PCV valve is a common service item and is interchangeable across all ENC-equipped models and years.

Timing Chain:

Timing chain kits are consistent for all production years (2002-2006).

Common Reliability Issues - CHRYSLER ENC

The ENC's primary reliability consideration is potential oil sludge formation under severe service conditions, with elevated incidence noted in vehicles subjected to frequent short trips and infrequent oil changes. Chrysler internal data prompted a service bulletin reinforcing maintenance procedures, while U.S. NHTSA data shows no significant safety recalls linked to the engine. Adherence to the MS-6395 oil specification and recommended change intervals is the most critical factor for long-term health.

Oil sludge buildup
Symptoms: Low oil pressure warning, engine noise (ticking or knocking), clogged oil passages, reduced engine performance, oil cap sludge.
Cause: Extended oil change intervals, frequent short trips preventing the engine from reaching optimal operating temperature, or use of non-specified oil leading to sludge formation in the oil pan and passages.
Fix: Perform a thorough engine flush (if deemed safe by a professional) and switch to strict 5,000-mile oil changes using only SAE 5W-30 oil meeting MS-6395 specification. Replace the PCV valve.
Timing chain tensioner failure
Symptoms: Rattling or whining noise from the front of the engine (especially at startup or idle), Check Engine Light for cam/crank correlation (P0016, P0017).
Cause: The hydraulic timing chain tensioner can fail or lose pressure, allowing the chain to become loose and rattle against the guides or cover.
Fix: Replace the timing chain tensioner and inspect the chain and guides for wear. It is often recommended to replace the entire timing chain kit if significant wear is found.
Intake manifold runner control (IMRC) failure
Symptoms: Check Engine Light (P2004, P2005, P2006, P2007), reduced low-end torque, rough idle, poor fuel economy.
Cause: The IMRC actuator or its linkage can fail, preventing the intake manifold runners from switching between long and short paths, which optimizes torque across the RPM range.
Fix: Diagnose the specific fault (actuator, linkage, or sensor) and replace the faulty component. Cleaning the linkage may resolve binding issues in some cases.
Coolant leaks from water pump or crossover tube
Symptoms: Coolant puddle under vehicle, low coolant level, sweet smell, engine overheating warning.
Cause: Age-related failure of the water pump's internal seal or the plastic coolant crossover tube, common in high-mileage engines.
Fix: Replace the leaking component (water pump or crossover tube assembly) with OEM parts and refill with correct coolant.
Research Basis

Analysis derived from Chrysler technical bulletins (2002-2006) and U.S. NHTSA recall data (2002-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about CHRYSLER ENC

Find answers to most commonly asked questions about CHRYSLER ENC.

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 officialCHRYSLER documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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