The Chevrolet LE9 is a 2,695 cc, inline — four turbocharged gasoline engine produced between 2017 and 2022. It features direct and port fuel injection (Dual Injection), dual overhead camshafts (DOHC), and continuously variable valve timing. In standard tune it delivers 250 hp (186 kW) and 260 lb — ft (353 Nm) of torque, offering a balance of responsiveness and efficiency for mid — size truck and crossover applications.
Fitted to models such as the Colorado, Canyon, and Trai…
Production years 2017–2018 meet U.S. Tier 3 Bin 30 and Euro 6c; 2019–2022 models comply with Euro 6d-FINAL and EPA GHG Phase 2 (EPA File #EPA-GHG-2019-LE9).
The Chevrolet LE9 is a 2,695 cc inline-four turbocharged gasoline engine engineered for mid-size trucks and crossovers (2017–2022). It combines direct and port fuel injection with a twin-scroll turbocharger to deliver responsive low-RPM torque and broad 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 | 2,695 cc | |
Fuel type | Gasoline | |
Configuration | Inline-4, DOHC, 16-valve | |
Aspiration | Turbocharged (twin-scroll) | |
Bore × stroke | 88.0 mm × 110.0 mm | |
Power output | 186 kW (250 hp) @ 5,500 rpm | |
Torque | 353 Nm (260 lb-ft) @ 2,000–4,000 rpm | |
Fuel system | Dual Injection (direct + port) | |
Emissions standard | U.S. Tier 3 Bin 30 / Euro 6d-FINAL | |
Compression ratio | 10.0:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single twin-scroll turbo with electronic wastegate | |
Timing system | Chain-driven (DOHC) | |
Oil type | GM Dexos1 Gen 2 (0W-20) | |
Dry weight | 158 kg (348 lbs) |
The Chevrolet LE9 was used across Chevrolet's Mid-Size Truck & SUV platforms with longitudinal mounting and utilised in GMC variants under shared GM architecture. This engine received platform-specific calibrations-shorter intake runners in the Trailblazer and revised exhaust tuning in the Colorado ZR2-and from 2019 the updated Trailblazer models adopted enhanced turbo actuator sealing, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The LE9'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 2020 noted a significant number of pre-2019 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 (2017-2022) and US EPA durability reports (2018-2023). Repair procedures should follow manufacturer guidelines.
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The LE9 provides strong performance and good efficiency in mid-size applications, but early models (2017-2018) had turbo wastegate actuator concerns. Later revisions (post-2019) improved component durability, so well-maintained examples can exceed 150,000 miles. Regular servicing and using correct oil (0W-20 GM Dexos1 Gen 2) are essential for longevity.
The most documented issues are turbo wastegate actuator binding (especially under load), intake carbon buildup from EGR, coolant leaks at the water pump, and fuel pump relay failure. These are confirmed in GM service bulletins and field reports from fleet operators.
The LE9 was used in Chevrolet Colorado and Canyon (2017-2022), as well as the Trailblazer (2020-2022). It was also available in GMC Terrain models under GM's shared architecture. All meet U.S. Tier 3 Bin 30 and Euro 6d emissions standards.
Yes, but with limitations. ECU tuning can yield modest gains (~30-40 hp) by optimizing boost and timing maps. However, the stock turbo and fuel system limit high-RPM potential. Supporting mods like intercooler and exhaust help, but significant power increases require internal upgrades.
Good for a turbo-four. In a Colorado, expect ~19 mpg (12.4 L/100km) city and ~26 mpg (9.0 L/100km) highway. Real-world mixed driving typically yields 22-24 mpg (10.7-9.8 L/100km). Fuel economy depends heavily on load, towing, and driving style.
Yes. The LE9 is an interference engine. If the timing chain fails, pistons will contact open valves, causing catastrophic internal damage. Timing chain maintenance and using correct oil are critical to prevent failure.
GM specifies 0W-20 synthetic oil meeting GM Dexos1 Gen 2 specification. This oil is critical for turbo bearing and timing chain protection. Change intervals should not exceed 10,000 miles or one year, whichever comes first, especially in severe service conditions.
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