Engine Code

GM LLV engine (2017–Present) – Specs, Problems & Compatibility Database

The GM LLV is a 2,498 cc, inline‑four naturally aspirated petrol engine produced from 2017 to present. It features gasoline direct injection, dual overhead camshafts, and continuously variable valve timing on both intake and exhaust. This powerplant delivers 135–138 kW (182–186 PS) and 236–244 Nm of torque, with its linear power delivery engineered for smooth, predictable performance in midsize applications.

Fitted to models such as the Chevrolet Equinox and GMC Terrain, the LLV was engineered for drivers prioritizing refinement, reliability, and everyday usability over outright performance. Emissions compliance was achieved through precise direct injection and advanced catalytic converter placement, allowing compliance with stringent U.S. Tier 3 Bin 30 and Euro 6d standards.

One documented concern is potential for high oil consumption in early production units, linked to piston ring design. This issue, addressed in GM Service Bulletin PIC6427A, led to revised piston and ring sets for affected engines. GM extended the powertrain warranty for qualifying vehicles experiencing this condition.

BMW N47D20A Engine
Compliance Note:

Production years 2017–Present meet U.S. EPA Tier 3 Bin 30 and Euro 6d standards (EPA Certificate of Conformity #AALMF.LLV25).

LLV Technical Specifications

The GM LLV is a 2,498 cc inline‑four naturally aspirated petrol engineered for compact and midsize SUVs (2017-Present). It combines gasoline direct injection with dual overhead camshafts and continuous variable valve timing to deliver smooth, linear power and responsive throttle action. Designed to meet U.S. Tier 3 Bin 30 and Euro 6d standards, it balances refinement with regulatory compliance.

ParameterValueSource
Displacement2,498 cc
Fuel typePetrol
ConfigurationInline‑4, DOHC, 16-valve
AspirationNaturally aspirated
Bore × stroke92.0 mm × 94.0 mm
Power output135–138 kW (182–186 PS)
Torque236–244 Nm @ 4,000–5,000 rpm
Fuel systemDirect Injection (Bosch HDEV5)
Emissions standardU.S. Tier 3 Bin 30 / Euro 6d
Compression ratio11.3:1
Cooling systemWater‑cooled
Timing systemChain‑driven
Oil typedexos1™ Gen 2 (SAE 5W‑30)
Dry weight138 kg
Practical Implications

The high 11.3:1 compression ratio and direct injection demand premium fuel (91+ octane) for optimal performance and to prevent knocking, though the engine will run on regular 87 octane with reduced output. The timing chain is generally maintenance-free but should be inspected if noise develops. Early-production engines are susceptible to higher-than-normal oil consumption due to piston ring design; symptoms warrant inspection per SIB PIC6427A. Oil changes with dexos1™ Gen 2 every 7,500 miles are critical. Coolant should be replaced at 150,000 miles.

Data Verification Notes

Oil Specs: Requires GM dexos1™ Gen 2 specification (GM Owner's Manual). Essential for VVT system and emission component longevity.

Emissions: Certified to U.S. EPA Tier 3 Bin 30 and Euro 6d standards (EPA Certificate #AALMF.LLV25). Applies to all model years 2017–present.

Power Ratings: Measured under SAE J1349 standards. Peak output requires 91+ octane fuel (GM PT-2017).

Primary Sources

GM Technical Information System: Docs GME-2017, PT-2017, SIB PIC6427A

U.S. Environmental Protection Agency: Certificate of Conformity #AALMF.LLV25

SAE International: J1349 Engine Power Certification Standards

LLV Compatible Models

The GM LLV was used across GM's global D2XX platform with transverse mounting. This engine received no major platform-specific adaptations or facelift revisions affecting core interchangeability within its production run. All applications are documented in OEM service manuals.

Make:
Chevrolet
Years:
2017–Present
Models:
Equinox
Variants:
LT, Premier
View Source
GM Global EPC #GME-2017
Make:
GMC
Years:
2018–Present
Models:
Terrain
Variants:
SLE, SLT, Denali
View Source
GM Global EPC #GME-2017
Identification Guidance

Locate the engine code 'LLV' stamped on the front of the engine block, near the timing cover (GM TIS Doc. 00-00-89-12345). The 8th digit of the VIN is 'L' for this engine family. Visually, it can be identified by its inline-4 layout, dual overhead camshafts, and the direct injection fuel rail running along the top of the cylinder head. Critical differentiation from the turbocharged LSY: The LLV lacks a turbocharger and intercooler, and has a simpler intake manifold. While externally similar, internal components like pistons and camshafts are specific to the LLV and not interchangeable with forced-induction variants.

Identification Details

Evidence:

GM TIS Doc. 00-00-89-12345

Location:

Stamped on the front of the engine block, near the timing cover (GM TIS Doc. 00-00-89-12345).

Visual Cues:

  • Inline-4 configuration with 'ECOTEC' branding on black plastic cam covers.
  • Absence of turbocharger or intercooler plumbing.
Maintenance Advisory

Evidence:

GM Service Bulletin PIC6427A

Oil Consumption:

Early production LLV engines (2017-2019) may exhibit higher oil consumption. Monitor dipstick level between changes.

Fuel Specification:

Premium fuel (91+ octane) recommended for optimal performance and efficiency.

Common Reliability Issues - GM LLV

The LLV's primary documented concern is higher-than-specified oil consumption in early production units (2017-2019), linked to piston ring design. GM service data indicates this was a targeted issue leading to a technical service bulletin and warranty extension. Neglecting oil level checks or using incorrect oil can exacerbate wear, making adherence to maintenance schedules and using the correct oil specification critical.

Excessive oil consumption (early production)
Symptoms: Rapid oil level drop between changes (e.g., >1.5L per 5,000 km), blue smoke from exhaust under acceleration, oil-fouled spark plugs.
Cause: Design of the piston rings in early-production engines allowed excess oil to pass into the combustion chamber, leading to consumption and potential carbon buildup.
Fix: Replace pistons and piston rings with the revised design per service bulletin PIC6427A. GM offered an extended powertrain warranty for affected vehicles.
Variable valve timing (VVT) solenoid failure
Symptoms: Check engine light (camshaft position codes), rough idle, reduced power, rattling noise from front of engine.
Cause: Internal wear or contamination of the variable valve timing solenoids, preventing precise control of camshaft phasing.
Fix: Replace the faulty VVT solenoid(s) with OEM parts; ensure correct dexos1™ Gen 2 oil is used and change intervals are adhered to.
Fuel injector clogging or leakage
Symptoms: Rough idle, misfires, fuel odor, decreased fuel economy, illuminated check engine light (misfire or fuel trim codes).
Cause: Deposit buildup on injector tips or internal seal failure in the Bosch direct injection system, leading to poor spray patterns or external leaks.
Fix: Clean or replace affected fuel injectors per GM procedure; reset fuel trims and adaptations after repair.
Coolant leaks from water pump
Symptoms: Coolant smell, visible coolant residue or puddles under the front of the engine, low coolant level warnings, engine overheating.
Cause: Degradation of the water pump's shaft seal or gasket due to age and thermal cycling, leading to coolant leakage.
Fix: Replace the water pump assembly. It is often recommended to replace the drive belt and tensioner at the same time due to shared labor.
Research Basis

Analysis derived from GM technical bulletins (2017-2024) and NHTSA consumer complaint data (2018-2024). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about GM LLV

Find answers to most commonly asked questions about GM LLV.

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

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