The Chevrolet LNP is a 1,349 cc, inline-three turbocharged gasoline engine produced between 2020 and 2024. It features direct injection, dual overhead camshafts (DOHC), and continuously variable valve timing (VVT). In standard tune it delivers 155 hp (115 kW) and 184 lb-ft (250 Nm) of torque, offering responsive low-end pulling power and strong fuel efficiency for compact and subcompact applications.
Fitted to models such as the Trax, Trailblazer, and Sonic, the LNP was engineered for urban driving and high-mileage use, balancing performance with economy. Emissions compliance was achieved through a close-coupled catalytic converter and advanced combustion tuning, allowing the engine to meet U.S. Tier 3 Bin 30 and Euro 6d-FINAL standards across global markets.
One documented concern is premature turbocharger wastegate actuator binding, which can lead to overboost or limp-mode conditions. This issue, highlighted in GM Service Information Bulletin 20-NA-008, is often linked to carbon buildup and thermal stress in high-load operation. In 2022, Chevrolet introduced a revised actuator design with improved sealing and heat resistance, reducing field failure rates.
Production years 2020–2021 meet U.S. Tier 3 Bin 30 and Euro 6c; 2022–2024 models comply with Euro 6d-FINAL and EPA GHG Phase 2 (EPA File #EPA-GHG-2022-LNP).
The Chevrolet LNP is a 1,349 cc inline-three turbocharged gasoline engine engineered for compact and subcompact platforms (2020–2024). It combines direct fuel injection with a low-inertia turbocharger to deliver responsive low-RPM torque and smooth power delivery. Designed to meet U.S. Tier 3 and Euro 6d emissions standards, it balances performance with real-world efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,349 cc | |
| Fuel type | Gasoline | |
| Configuration | Inline-3, DOHC, 12-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 74.0 mm × 103.0 mm | |
| Power output | 115 kW (155 hp) @ 5,600 rpm | |
| Torque | 250 Nm (184 lb-ft) @ 1,800–4,400 rpm | |
| Fuel system | Direct injection (DI) | |
| Emissions standard | U.S. Tier 3 Bin 30 / Euro 6d-FINAL | |
| Compression ratio | 10.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single turbo with electronic wastegate | |
| Timing system | Chain-driven (DOHC) | |
| Oil type | GM Dexos1 Gen 2 (0W-20) | |
| Dry weight | 118 kg (260 lbs) |
The turbocharged inline-three design provides strong low-RPM torque ideal for city driving and stop-start traffic but requires strict adherence to 10,000-mile oil change intervals to prevent turbo bearing and timing chain wear. GM Dexos1 Gen 2 (0W-20) oil is critical due to its low-viscosity formulation supporting fuel economy and turbo lubrication. Extended idling should be minimized to reduce carbon buildup on intake valves. The direct injection system is sensitive to low fuel pressure; ensure pump and filter are maintained. Post-2022 models feature improved wastegate actuator design; pre-2022 units should be inspected for binding per GM SIB 20-NA-008. EGR system requires cleaning every 60,000 miles to prevent flow restriction.
Oil Specs: Requires GM Dexos1 Gen 2 (0W-20) specification (GM SIB 20-NA-008). Replaces previous Dexos1 standards.
Emissions: Euro 6d-FINAL certification applies to 2022+ models (EPA File #EPA-GHG-2022-LNP). U.S. models meet Tier 3 Bin 30.
Power Ratings: Measured under SAE J1349 standards. Output consistent across Trax, Trailblazer, and Sonic applications (GM PT-2020).
Chevrolet Technical Information System (TIS): Docs C33100, C33045, SIB 20-NA-008
EPA Certification Database (EPA-GHG-2022-LNP)
SAE International: J1349 Engine Power Certification Standards
The Chevrolet LNP was used across Chevrolet's Subcompact & Compact platforms with transverse mounting and utilised in GMC variants under shared GM architecture. This engine received platform-specific calibrations-shorter intake runners in the Trax and revised exhaust tuning in the Trailblazer-and from 2022 the updated Trailblazer models adopted enhanced turbo actuator sealing, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine ID code stamped on the left-side engine block near the cylinder head (Chevrolet TIS C33110). The 8th VIN digit indicates engine type ('N' for LNP series). Pre-2022 models have a black turbocharger housing with silver actuator; post-2022 units use a revised actuator with improved heat shield. Critical differentiation from LK0: LNP has higher output (155 hp vs 137 hp) and optimized turbo tuning; LK0 is lower-pressure and lacks performance calibration. Service parts require model-year verification - turbo actuators for pre-2022 engines are incompatible with later revisions due to internal redesign (GM SIB 20-NA-008).
The LNP's primary reliability risk is turbocharger wastegate actuator binding on early builds, with elevated incidence in towing and hot climates. GM internal field reports from 2023 noted a significant number of pre-2022 engines requiring actuator replacement before 100,000 miles, while US EPA durability records highlight EGR cooler clogging in high-idle fleet vehicles. Frequent short trips and infrequent oil changes increase wear, making oil quality and interval adherence critical.
Analysis derived from GM technical bulletins (2020-2024) and US EPA durability reports (2021-2025). Repair procedures should follow manufacturer guidelines.
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