GMC Sierra 1500 III (GMT900) Crew Cab Short Box 5.3 Vortec V8 (315 Hp) 6 Automatic FlexFuel


Overall Rating

7.6 / 10
Safety N/A / 5
Not Rated
Engine 4.0 / 5
Value 3.7 / 5
Performance 4.0 / 5
Comfort 3.5 / 5
People\'s Opinion N/A / 5
Not Rated

GMC Sierra 1500:

The Chevrolet Silverado is a range of trucks manufactured by General Motors under the Chevrolet brand. Introduced for the 1999 model year, the Silverado is the successor to the long-running Chevrolet C/K model line. Taking its name from the top trim level from the Chevrolet C/K series, the Silverado is offered as a series of full-size pickup trucks, chassis cab trucks, and medium-duty trucks. The fourth generation of the model line was introduced for the 2019 model year.
The Chevrolet Silverado shares mechanical commonality with the identically related GMC Sierra; GMC ended the use of the C/K nomenclature a model generation prior to Chevrolet. In Mexico, high-trim level versions of the Silverado use the Chevrolet Cheyenne name Starting with the LT trim. Standard and "Custom" trims are still called Silverado. Competing against the Ford F-Series, Ram pickup, Toyota Tundra, and Nissan Titan, the Silverado is among the best-selling vehicles in the United States, having sold over 12 million trucks since its introduction in 1998 as a 1999 model year....(Read more on Wikipedia)

III (GMT900) Crew Cab Short Box Overview:

GMC Sierra 1500 (III (GMT900) Crew Cab Short Box). With 458 Nm of torque, it offers ample pulling power. Rear‑wheel drive offers dynamic handling and sporty feedback. A vehicle with an open cargo bed at the back, suitable for transporting goods. With seating for 6, it’s perfect for larger families.

5.3 Vortec V8 (315 Hp) 6 Automatic FlexFuel Verdict:

Rating 4 stars

Performance Verdict

Identical strong performance to the standard 5.3L, providing ample power for most tasks. FlexFuel capability adds versatility for fuel choices.

Fuel Economy

Fuel economy remains a primary concern, especially when running on E85, which typically results in lower MPG due to its lower energy density.

Best Use Case: Daily driving, towing, and for owners who have access to or prefer E85 fuel for its potential environmental benefits or cost.

Pros and Cons:

Pros:

  • • Powerful V8 engine options
  • • Excellent towing and hauling capacity
  • • Spacious and comfortable Crew Cab interior
  • • Robust and durable build quality
  • • Available 4WD/AWD for versatility

Cons:

  • • Poor fuel economy, especially with larger engines
  • • Some V8 engines (e.g., 5.3L) prone to Active Fuel Management (AFM) issues
  • • Ride can be stiff when unladen
  • • Interior plastics feel dated compared to some rivals
  • • Large turning radius in tight spaces

Specifications:

Specifications are compared to those of the previous generation(II (GMT800): 2002 - 2007).

General:
Brand:GMC
Model:Sierra 1500
Generation:III (GMT900) Crew Cab Short Box
Modification (Engine):5.3 Vortec V8 (315 Hp) 6 Automatic FlexFuel
Start of production:2007
End of production:2010
Powertrain Architecture:Internal Combustion engine
Body type:Pick-up
Seats:6
Doors:4
Engine:
Power:315 Hp @ 5200 rpm. Same horsepower
Power per litre:59.1 Hp/l [683mm more]
Torque:458 Nm @ 4400 rpm.
Engine Model/Code:LC9 More details about the engine LC9
Engine displacement:5328
Number of cylinders:8
Engine configuration:V-engine
Number of valves per cylinder:2
Fuel injection system:Multi-port manifold injection
Engine aspiration:Naturally aspirated engine
Valvetrain:OHV
Engine oil capacity:5.7 l
Coolant:14.1 l
Engine layout:Front, Longitudinal
Cylinder Bore:96.01 mm mm
Piston Stroke:91.95 mm mm
Compression ratio:9.9:1
Maximum engine speed:6000 rpm.
Performance:
Fuel Type:Petrol / Ethanol - E85
Fuel consumption (economy) - urban:16.8 l/100 km
Fuel consumption (economy) - extra urban:11.8 l/100 km
Space:
Max. weight:3084
Trunk (boot) space - maximum:1506 l
Permitted trailer load with brakes (12%):4354 kg
Fuel tank capacity:98 l
Size:
Ramp-over (brakeover) angle:19.3°
Length:5844 mm mm [683mm more]
Width:2031 mm mm [37mm more]
Height:1875 mm mm [67mm more]
Wheelbase:3645 mm mm [622mm more]
Width including mirrors:2031 mm
Front track:1730 mm
Rear (Back) track:1702 mm
Ride height (ground clearance):229 mm
Minimum turning circle (turning diameter):14.4 m [above average]
Approach angle:15.3°
Departure angle:22.8°
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
Number of gears6
Transmission typeAutomatic
Gearbox typeHydra-Matic
Front brakesDisc, 330x30 mm [bad for performance and cooling.]
Rear brakesDrum, 295x60 mm [bad for performance and cooling.]
Assisting systemsABS (Anti-lock braking system)
Steering typeSteering rack and pinion
Power steeringElectric Steering
Tires size245/70 R17
Wheel rims size7.5J x 17
Front suspensionIndependent coil spring
Rear suspensionRigid axle suspension, Leaf spring

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