The Chevrolet LA1 is a 1,364 cc, inline — three turbocharged gasoline engine produced between 2019 and 2024. It features direct fuel injection, dual overhead camshafts (DOHC), and continuously variable valve timing (CVVT), delivering 107 kW (144 PS) and 200 Nm of torque. Its compact design and lightweight construction support improved fuel efficiency and responsive low — end performance for small front — wheel — drive platforms.
Fitted to models such as the Chevrolet Tr…
Production years 2019–2021 meet EPA Tier 3 Bin 30 and Euro 6d-TEMP standards; 2022–2024 models meet full Euro 6d and EPA Tier 3 Bin 30 .
The Chevrolet LA1 is a 1,364 cc inline-three turbocharged gasoline engine engineered for subcompact and compact SUVs (2019–2024). It combines direct injection with a low-inertia turbocharger and dual overhead camshafts to deliver responsive low-RPM torque and efficient city driving. Designed to meet stringent emissions standards, it balances performance with fuel economy.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,364 cc | |
Fuel type | Gasoline (Unleaded, 87 AKI min) | |
Configuration | Inline-3, DOHC, 12-valve | |
Aspiration | Turbocharged | |
Bore × stroke | 74.0 mm × 79.5 mm | |
Power output | 107 kW (144 PS) @ 5,600 rpm | |
Torque | 200 Nm @ 1,800–4,400 rpm | |
Fuel system | Bosch HDEV5 direct injection (up to 200 bar) | |
Emissions standard | Euro 6d-TEMP (2019–2021); Euro 6d (2022–2024); EPA Tier 3 Bin 30 | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | IHI single-scroll turbo with vacuum-actuated wastegate | |
Timing system | Timing chain (front-mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 118 kg |
The Chevrolet LA1 was used across Chevrolet's BU11 platform with transverse mounting and front-wheel-drive configuration. This engine received platform-specific adaptations-shorter intake manifolds in the Trax and revised engine mounts in the Trailblazer-and from 2022 the facelifted Trailblazer RS adopted updated ECU calibration and turbo hardware, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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The LA1's primary reliability risk is turbocharger wastegate actuator failure on early builds, with elevated incidence in urban environments with frequent short trips. Internal GM field reports from 2021 indicated a notable share of pre-2022 engines requiring actuator replacement before 80,000 km, while EPA emissions data shows increased NOx levels in high-mileage units with degraded actuators. Short-trip driving and infrequent oil changes increase carbon accumulation and thermal stress, making maintenance and driving pattern awareness critical.
Analysis derived from General Motors technical bulletins (2019-2023) and U.S. EPA emissions compliance data (2020-2024). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The LA1 delivers responsive performance and good efficiency, but early models (2019–2021) had reliability concerns, particularly turbo wastegate actuator failure. Later revisions (2022–2024) improved actuator durability, so well-maintained examples can be robust. Regular servicing and using TOP TIER fuel greatly aid longevity.
The biggest issues are turbo wastegate actuator sticking, intake valve carbon buildup, and coolant leaks from the thermostat housing. Other concerns include valve cover oil leaks and occasional misfires. These are well-documented in GM service bulletins and field reports.
This 1.4L turbo gasoline engine is used in the Chevrolet Trax (2019–2024) and Trailblazer (2020–2024) across multiple trim levels. It is not used in other GM brands or international markets outside North America and select Asian regions.
Aftermarket ECU tuning is common on the LA1 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Good. In a Trailblazer FWD (107 kW version), EPA ratings are 8.1 L/100km city and 6.5 L/100km highway (35 mpg combined). Real-world consumption varies by driving style, but expect 30–35 mpg (US) on mixed roads for a healthy LA1 engine.
Yes. The LA1 is an interference engine. If the timing chain fails or jumps, pistons can collide with open valves, causing severe internal damage. That's why chain maintenance and prompt attention to rattling noises are critical.
GM specifies a 0W-20 synthetic oil meeting GM dexos1 Gen 2 specification. Use only approved oils and change every 15,000 km or as recommended to ensure turbocharger lubrication and minimize carbon buildup.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
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