V6 Engine Change Ignition Coils Specs Specifications

1999-2007 (1st Gen) GMC Sierra Specifications

Look up GMC Sierra specification, engine oil capacity, spark plug gap, safety rating, fuel consumption, transmission, and light bulb sizes.

Engine 6.0L 8-Cylinder

  • Recommended Oil viscosity: 5W-30
  • Oil certification: API
  • Drain Plug Torque: 18 FT-LBS
  • Oil capacity: 6.0 quarts

Spark Plug Gap

  • 6.0L 8-Cylinder : 0.040”

Engine 8.1L 8-Cylinder

  • Recommended Oil viscosity: 5W-30
  • Oil certification: API
  • Drain Plug Torque: 21 FT-LBS
  • Oil capacity: 4.5 quarts

Spark Plug Gap

  • 8.1L 8-Cylinder: 0.060”

Engine 6.6L 8-Cylinder

  • Recommended Oil viscosity: 15W-40
  • Oil certification: API
  • Drain Plug Torque: 18 FT-LBS
  • Oil capacity: 10.0 quarts

Air Conditioning Refrigerant R134a

  • Capacity: 1.6 lbs (0.7 kg)

Cooling System

  • VORTEC™ 4300 V6 Automatic with Front A/C*: 14.8 qts (14.0 L)
  • VORTEC™ 4300 V6 Automatic with Front A/C**: 16.4 qts (15.5 L)
  • VORTEC™ 4300 V6 Manual with Front A/C*: 15.1 qts (14.3 L)
  • VORTEC™ 4300 V6 Manual with Front A/C**: 16.6 qts (15.7 L)
  • VORTEC™ 4800 V8 Automatic with Front A/C**: 16.8 qts(15.9 L)
  • VORTEC™ 4800 V8 Manual with Front A/C**: 17.0 qts (16.1 L)
  • VORTEC™ 5300 V8 Automatic with Front A/C**: 16.8 qts (15.9 L)
  • VORTEC™ 6000 V8 Automatic* : 16.0 qts(15.1 L)
  • VORTEC™ 6000 V8 Automatic**: 16.7 qts (15.8 L)
  • VORTEC™ 6000 V8 Manual* :16.4 qts (15.5 L)
  • VORTEC™ 8100 V8 HD Automatic*:25.0 qts (23.7 L)
  • VORTEC™ 8100 V8 Automatic*: 26.9 qts (25.5 L)
  • VORTEC™ 8100 V8 Manual*: 27.1 qt (25.6 L)
* Engine Fan Driven cooling system ** Electric Cooling Fan system

Fuel

  • Short Bed and 2500 LD: 26.0 gal (98.0 L)
  • Long Bed and Chassis Cab (Pickup Box Delete): 36.0 gal (136.0 L)
  • Chassis Cab 3500 and 3500HD — front : 27.0 gal (102.0 L)
  • Chassis Cab 3500 and 3500HD — rear : 23.0 gal (87.0 L)

Engine Coolant

  • Type: 50/50 mixture of clean, drinkable water and use only DEX-COOL® Coolant.

Hydraulic Brake System

  • Type: Delco® Supreme 11 Brake Fluid or equivalent DOT-3 brake fluid.

Windshield Washer Solvent

  • Type: Optikleen® Washer Solvent.

Hydraulic Clutch System (5–Speed Trans.)

  • Type: Hydraulic Clutch Fluid (GM Part No. U.S. 12345347, in Canada 10953517) or equivalent DOT-3 brake fluid

Hydraulic Clutch System (6–Speed Trans.)

  • Type: Hydraulic Clutch Fluid. Use only GM Part No. U.S. 88958860, in Canada 88901244, Super DOT-4 brake fluid

Power Steering System

  • Type: GM Power Steering Fluid (GM Part No. U.S. 89021184, in Canada 89021186)

Manual Transmission (5–Speed with Low Gear, RPO MW3)

  • Type: GM Goodwrench® Synthetic ManualTransmission Fluid (GM Part No. U.S. 12346190, in Canada 10953477) or equivalent SAE 75W-85 GL-4 gear oil

Manual Transmission (5–Speed without Low Gear, RPO MG5)

  • Type: Synchromesh Transmission Fluid (GM Part No. U.S. 12345349, in Canada 10953465).

Manual Transmission (6–Speed)

  • Type: Synthetic Transmission Fluid approved to Allison Transmission® specification TES-295 (GM Part No. U.S.12378515, in Canada 88900701)

Automatic Transmission

  • Type: DEXRON®-III Automatic Transmission Fluid. Look for “Approved for the H-Specifification” on the label.

Key Lock Cylinders

  • Type: Multi-Purpose Lubricant, Superlube (GM Part No. 12346241, in Canada 10953474).

Floor Shift Linkage

  • Type: Lubriplate Lubricant Aerosol (GM Part No. U.S. 12346293, in Canada 992723) or lubricant meeting requirements of NLGI #2 Category LB or GC-LB.

Parking Brake Cable Guides

  • Type: Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Automatic Transmission

  • Type: DEXRON®-VI Automatic Transmission Fluid.

Chassis Lubrication

  • Type: Chassis Lubricant(GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Front and Rear Axle

  • Type: SAE 80W-90 Axle Lubricant (GM Part No. U.S. 1052271, in Canada 10950849)

Rear Axle

  • Type: SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 12378261, in Canada 10953455) meeting GM Specification 9986115

Rear Axle (Steerable)

  • Type: Synthetic Axle Lubricant; use only GM Part No. U.S. 12378557, in Canada 88901362. Do not add a friction modifier

Manual Transfer Case

  • Type: DEXRON®-III Automatic Transmission Fluid. Look for “Approved for the H-Specifification” on the label.

Automatic Transfer Case

  • Type: AUTO-TRAK II Fluid (GM Part No. U.S. 12378508, in Canada 10953626)

Front Axle Propshaft Spline or One-Piece Propshaft Spline (Two-Wheel Drive with Auto. Trans.)

  • Type: Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada 10953511) or lubricant meeting requirements of GM 9985830.

Rear Driveline Center Spline

  • Type: Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB.

Hood Hinges

  • Type: Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474)

Body Door Hinge Pins, Tailgate Hinge and Linkage, Folding Seats, and Fuel Door Hinge

  • Type: Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in  Canada 10953474)

Tailgate Handle Pivot Points, Hinges, Latch Bolt, and Linkage

  • Type: Multi-Purpose Lubricant, Superlube GM Part No. U.S. 12346241, in Canada 10953474).

Weatherstrip Conditioning

  • Type: Weatherstrip Lubricant (GM Part No. U.S. 3634770, in Canada 10953518) or Dielectric Silicone Grease (GM Part No. U.S. 12345579, in Canada 992887).

Weatherstrip Squeaks

  • Type: Synthetic Grease with Teflon, Superlube   (GM Part No. U.S. 12371287, in Canada 10953437).

Powertrain

Engine

  • 4.3 L V6 195 hp (145 kW)[15][16]
  • 4.8 L V8 295 hp (220 kW)[15]
  • 5.3 L V8 315 hp (235 kW)[15]
  • 6.0 L V8 367 hp (274 kW)[15] (2007–2009)
  • 6.2 L V8 403 hp (301 kW)[15] (2009–2013)

Transmission

  • 4-speed 4L60-E automatic
  • 4-speed “2-Mode Hybrid transmission” 2ML70 (Hybrid)
  • 6-speed manual (Mexico only)
  • 6-speed 6L80 automatic

Fuel Consumption

GMC SIERRA FUEL CONSUMPTION

Safety Ratings

GMC SIERRA SAFETY RATINGS

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