GM L3T Engine Specs, Problems And Reliability

GM L3T Engine Specs, Problems And Reliability

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By Scott Matthew

Assembled in Korea since 2018, the General Motors L3T 1.3-liter 3-cylinder turbo engine stands as a testament to the pursuit of excellence in automotive engineering. This dynamic power unit has found its place in the hearts of car enthusiasts, gracing popular models like the Chevrolet Trailblazer, Malibu, and Buick Encore GX. A tailored variant of this engine, identified by the F14SHT index, is crafted for the Opel Astra.

E-Turbo Family Continuity: Being part of the esteemed E-Turbo family alongside the LIH engine, the L3T shares the lineage known for its innovative approach to turbocharging technology.

Impressive Installations

The L3T engine has been strategically integrated into various models, contributing to their performance and efficiency. Notable installations include:

  • Buick Encore GX 1 (VSS-F) since 2019
  • Buick LaCrosse 3 (P2XX) since 2019
  • Chevrolet Malibu 9 (V400) since 2018
  • Chevrolet Orlando 2 (D2XX) since 2018
  • Chevrolet Trailblazer 3 (VSS-F) since 2020

Driving Dynamics, Ensuring Excellence: As a powerhouse within these renowned models, the L3T engine plays a pivotal role in shaping driving dynamics. Its incorporation reflects a commitment to pushing the boundaries of performance, efficiency, and innovation in the automotive industry.

Engine Specs

Production YearsSince 2018
Displacement, cc1338
Fuel SystemDirect Injection
Power Output, hp156 – 163
Torque Output, Nm230 – 240
Cylinder BlockAluminum R3
Block HeadAluminum 12v
Cylinder Bore, mm79
Piston Stroke, mm91
Compression Ratio10.0
Hydraulic LiftersYes
Timing DriveChain
Phase RegulatorDCVCP
Recommended Engine Oil0W-20
Engine Oil Capacity, liter4.5
Fuel TypePetrol
Euro StandardsEURO 6d
Fuel Consumption, L/100 kmCity: 8.5

Highway: 6.3

Combined: 7.6

Engine Lifespan, km~250,000
Weight, kg107

Note: The specifications provided are for the engine model, and the fuel consumption values are specific to the Chevrolet TrailBlazer 2021 model.

GM L3T engine Problems

The GM L3T engine has been reported to have several issues based on user experiences:

  1. Noise, Vibrations, and Start-Stop System Malfunctions: Owners have complained about noise, vibrations, and malfunctions associated with the Start-Stop system. These issues may impact the driving experience and overall comfort.
  2. EVAP Gas Vapor Recovery System: The EVAP (Evaporative Emission Control System) gas vapor recovery system is mentioned as a source of complaints. Users may find this system capricious or prone to malfunctions.
  3. Deposits on Intake Valves: Being a direct fuel injection engine, the L3T engine is reported to suffer from deposits on the intake valves. Carbon buildup on valves can affect engine performance over time, necessitating periodic cleaning.
  4. Intercooler Icing: Similar to other modern GM turbo engines, the L3T engine experiences issues with intercooler icing. This phenomenon can impact the efficiency of the intercooler and affect engine performance under certain conditions.

Addressing these concerns may involve regular maintenance, addressing carbon deposits, seeking professional assistance for Start-Stop system malfunctions, and being aware of potential issues with the EVAP system. Staying informed about manufacturer recommendations and potential recalls can also contribute to the engine’s overall reliability and performance.

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