GMC Sierra 1500 III (GMT900) Extended Cab Standard Box 4.3 Vortec V6 (195 Hp) Automatic


Overall Rating

6.2 / 10
Safety N/A / 5
Not Rated
Engine 2.8 / 5
Value 3.0 / 5
Performance 2.5 / 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) Extended Cab Standard Box Overview:

GMC Sierra 1500 (III (GMT900) Extended Cab Standard Box). With 353 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.

4.3 Vortec V6 (195 Hp) Automatic Verdict:

Rating 3 stars

Performance Verdict

This 4.3L Vortec V6 provides adequate power for light-duty hauling and daily driving, but feels underpowered when fully loaded or attempting quick acceleration. It's a workhorse, not a speed demon.

Fuel Economy

Fuel economy is a significant drawback for this engine, especially by modern standards. Urban consumption is high, making it less economical for city driving compared to more efficient V8s or newer V6 designs.

Best Use Case: Light-duty work, local errands, or as a basic utility truck where towing heavy loads isn't a primary concern. Best suited for those prioritizing initial cost over long-term fuel savings.

Pros and Cons:

Pros:

  • • Robust and durable GMT900 platform
  • • Comfortable ride for a full-size truck
  • • Spacious extended cab interior
  • • Proven reliability of the Vortec engine family

Cons:

  • • High fuel consumption, especially with the 4.3L V6
  • • Dated 4-speed automatic transmission limits efficiency and refinement
  • • Interior plastics can feel cheap on lower trims
  • • Base V6 engine lacks power for heavy towing or hauling

Specifications:

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

General:
Brand:GMC
Model:Sierra 1500
Generation:III (GMT900) Extended Cab Standard Box
Modification (Engine):4.3 Vortec V6 (195 Hp) Automatic
Start of production:2007
End of production:2013
Powertrain Architecture:Internal Combustion engine
Body type:Pick-up
Seats:6
Doors:2
Engine:
Power:195 Hp @ 4600 rpm. Same horsepower
Power per litre:45.3 Hp/l [683mm more]
Torque:353 Nm @ 2800 rpm.
Engine Model/Code:LU3 More details about the engine LU3
Engine displacement:4300
Number of cylinders:6
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:4.3 l
Coolant:11.9 l
Engine layout:Front, Longitudinal
Cylinder Bore:101.6 mm mm
Piston Stroke:88.39 mm mm
Compression ratio:9.2:1
Maximum engine speed:5600 rpm.
Performance:
Fuel Type:Petrol (Gasoline)
Fuel consumption (economy) - urban:15.7 l/100 km
Fuel consumption (economy) - extra urban:11.8 l/100 km
Space:
Max. weight:2903
Trunk (boot) space - maximum:1718 l
Fuel tank capacity:98 l
Size:
Ramp-over (brakeover) angle:19.6°
Length:5844 mm mm [683mm more]
Width:2029 mm mm [35mm more]
Height:1876 mm mm [68mm more]
Wheelbase:3645 mm mm [622mm more]
Width including mirrors:2029 mm
Front track:1730 mm
Rear (Back) track:1702 mm
Ride height (ground clearance):226 mm
Minimum turning circle (turning diameter):14.3 m [above average]
Approach angle:15.9°
Departure angle:24°
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
Number of gears4
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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