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Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic

General information
Photo of 2015 - 2015 Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic Pick-up (420 Hp) - technical specs and dimensions
Power 420 Hp @ 5600 rpm.
Torque 623 Nm @ 4100 rpm.
Brand
GMC
Model
Sierra 1500
Generation
Sierra 1500 IV (GMTK2XX) Crew Cab Standard Box
Modification (Engine)
6.2 EcoTec3 V8 (420 Hp) Automatic
Start of production
2013 year
End of production
2014 year
Powertrain Architecture
Internal Combustion engine
Powertrain architecture classifies the propulsion technology of the vehicle, such as internal combustion, electric (BEV), or hybrid.
Body type
Pick-up
Body type refers to the structural design and shape of the vehicle (such as Sedan, Hatchback, SUV, or Coupe).
Seats
5
Seat count specifies the maximum passenger capacity the vehicle is legally approved to transport at once.
Doors
4
Door count indicates the total number of entry points for passengers and cargo access (e.g., 3-door, 5-door).

Gmc Sierra 1500 Review

As a Pick-up model, the Gmc Sierra 1500 Sierra 1500 IV (GMTK2XX) Crew Cab Short Box (6.2 EcoTec3 V8 (420 Hp) Automatic) has been in production since 2013. The heart of the vehicle is a 6162 cm3 internal combustion engine producing 420 Hp @ 5600 rpm.. The specific power of 68.2 Hp/l highlights the efficiency of this engine setup. The power is delivered smoothly across 8 cylinders.

The Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic entered the market in 2015 - 2015, aiming to set new benchmarks through its design and technical capabilities. At its core, the vehicle features a performance-oriented engine delivering 420 Hp @ 5600 rpm. of power. Compared to its competitors, it stands out in ergonomics and dynamics. With its timeless design, this version maintains a popular profile according to CarWiki.
📊 Model Comparison AnalysisThis model delivers **+135 Hp** more power compared to its sibling 4.3 EcoTec3 V6 (285/297 Hp) 4WD Automatic FlexFuel. This model delivers **+65 Hp** more power compared to its sibling 4.3 EcoTec3 V6 (285/297 Hp) Automatic FlexFuel.
FAQ
How many horsepower does Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic have? +
The Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic model is equipped with an engine producing 420 Hp @ 5600 rpm. total horsepower.
What drivetrain does the Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic have? +
This model transfers power to the road via a Rear wheel drive drivetrain.
Is the Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic a good car? +
Considering the technical specs and market position, the Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic is a highly competitive and desirable model in its class.
Is Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic reliable? +
The Gmc 6.2 EcoTec3 V8 (420 Hp) Automatic is built with high engineering standards and is generally considered a reliable vehicle with proper maintenance.
Performance specs
Fuel consumption (economy) - urban
15.7 l/100 km
Fuel consumption shows how much fuel the car consumes on average per 100 km. Lower figures represent better fuel economy and lower running costs.
Fuel consumption (economy) - extra urban
11.2 l/100 km
Fuel consumption shows how much fuel the car consumes on average per 100 km. Lower figures represent better fuel economy and lower running costs.
Fuel Type
Petrol (Gasoline)
Fuel type defines the primary source of energy required by the vehicle’s engine (petrol, diesel, electricity, hybrid, LPG, etc.).
Weight-to-power ratio
5.6 kg/Hp, 177.5 Hp/tonne
Weight-to-torque ratio
3.8 kg/Nm, 263.3 Nm/tonne
Engine specs
Power
420 Hp @ 5600 rpm.
Power per litre
68.2 Hp/l
Power per litre (specific power) measures the engine power relative to its displacement. A higher value indicates advanced efficiency and engineering quality.
Torque
623 Nm @ 4100 rpm.
Torque represents the engine’s rotational force, which determines pulling power. High torque ensures responsive acceleration and stronger uphill performance.
Maximum engine speed
6000 rpm.
Engine layout
Front, Longitudinal
Engine layout defines the position and alignment of the engine block. This layout affects the car’s weight distribution, handling, and interior cabin space.
Engine Model Code
L86
Engine displacement
6162 cm3
Engine displacement represents the combined volume of all cylinders. It is a direct indicator of engine size and baseline performance potential.
Number of cylinders
8
Cylinder count represents the number of combustion chambers. More cylinders generally result in smoother operation and a refined engine note.
Engine configuration
V-engine
Cylinder bore
103.25 mm
Piston stroke
92 mm
Compression ratio
11.5:1
Number of valves per cylinder
2
Valves per cylinder control the airflow into and exhaust out of the engine. More valves improve high-RPM breathing and performance.
Fuel injection system
Direct injection
Engine aspiration
Naturally aspirated engine
Aspiration describes how the engine draws air into its cylinders, distinguishing naturally aspirated setups from turbochargers or superchargers.
Valvetrain
OHV
Engine oil capacity
8 l
Coolant
14.8 l
Engine systems
Cylinder deactivation system
Space, Volume and weights
Kerb Weight
2366 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
Max. weight
3175 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
Max. load
809 kg
Trunk (boot) space - minimum
1728 l
Fuel tank capacity
98 l
Permitted trailer load with brakes (12%)
4354 kg
Dimensions
Length
6071 mm
Width including mirrors
2032 mm
Height
1873 mm
Wheelbase
3886 mm
Front track
1747 mm
Rear / Back Track
1716 mm
Ride height (ground clearance)
216 mm
Minimum turning circle (turning diameter)
14.8 m
Approach angle
16.4°
Departure angle
23.3°
Ramp/Breakover angle
17.5°
Drivetrain, brakes and suspension specs
Drivetrain Architecture
The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drivetrain type specifies which wheels receive power from the engine. This affects road grip, cornering, and stability on slippery surfaces.
Drive wheel
Rear wheel drive
Drivetrain type specifies which wheels receive power from the engine. This affects road grip, cornering, and stability on slippery surfaces.
Number of gears and type of gearbox
6 gears, automatic transmission Hydra-Matic
Front suspension
Independent coil spring
The suspension system absorbs road bumps, providing cabin comfort and keeping tires firmly planted on the road surface.
Rear suspension
Rigid axle suspension, Leaf spring
The suspension system absorbs road bumps, providing cabin comfort and keeping tires firmly planted on the road surface.
Front brakes
Ventilated discs, 330x30 mm
The brake system is a vital safety component that uses friction to slow down or bring the vehicle to a complete stop.
Rear brakes
Ventilated discs, 345x20 mm
The brake system is a vital safety component that uses friction to slow down or bring the vehicle to a complete stop.
Assisting systems
ABS (Anti-lock braking system)
Steering type
Steering rack and pinion
Power steering
Electric Steering
Tires size
245/70R17; 265/70 R17
Tire size specifies the tread width, aspect ratio, and rim diameter, affecting the balance between handling grip and ride comfort.
Wheel rims size
8J x 17
Common OBD2 Fault Codes
P0442 🟡 Medium
EVAP Emission Control System Leak Detected (Small Leak)
Diagnostic Guide
P0443 🟡 Medium
EVAP Purge Control Valve Circuit
Diagnostic Guide
P0446 🟡 Medium
EVAP Emission Control System Vent Control Circuit
Diagnostic Guide
P0455 🟡 Medium
EVAP Emission Control System Leak Detected (Large Leak)
Diagnostic Guide
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User Reviews
O
Oscar 77
8 months ago
★★★★☆
Anyone knows the real-world N/A usage?
J
Jack A.
21 months ago
★★★★★
Decided on this after deep research. Engine performance exceeded my expectations. The infotainment is fast and lag-free. Value for money is unmatched, highly recommended.
O
Oliver X
18 weeks ago
★★★★★
Perfect size and choice for our small family. Acceleration is punchy and satisfying. Suspension handles bumps and rough roads very smoothly. Worth every single penny spent.
J
Jacob 77
21 months ago
★★★★★
Finally got the keys today. Very responsive throttle, makes highway overtaking a breeze. Suspension handles bumps and rough roads very smoothly. I highly recommend it, won't disappoint.
C
Charlie 95
16 weeks ago
★★★★☆
Decided on this after deep research. N/A efficiency is surprisingly good for this class. Interior quality is premium for this class. I highly recommend it, won't disappoint.

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