🏷️ Basic Information

Make:

GMC

Model:

Sierra 2500

Year:

2000

Chassis Code:

GMT880

👋 Introduction

Market Position:

Targeted at DIY enthusiasts and professional mechanics seeking an accurate, convenient, and cost-effective alternative to traditional printed manuals for the 2000 GMC Sierra 2500.

Competitive Analysis:

Offers superior searchability, instant access, and multi-device compatibility compared to outdated printed manuals. More current and detailed than generic online forums.

Key Features:

Officially licensed, OE-derived data, comprehensive coverage, user-friendly interface, fast access to critical repair information.

📋 Manual Details

Primary Coverage:

2000 GMC Sierra 2500 (all configurations including 2WD/4WD, various cab styles, and bed lengths)

Estimated Page Count:

1500+

Type:

Digital Service and Repair Manual Software

Language:

English

Format:

Proprietary Software (Web-based access with offline capabilities possible via browser cache, accessible on PC, laptop, smartphone, tablet)

📖 Manual Coverage

Engine:

4.8L Vortec V8 (LM7), 5.3L Vortec V8 (LM7), 6.0L Vortec V8 (LQ4), 8.1L Vortec V8 (Vortec 496)

Transmission:

4L60E (4-speed automatic), 4L80E (4-speed automatic), NV4500 (5-speed manual)

Drivetrain:

Front/Rear Axles, Differentials (G80 locking differential), Transfer Case (NP246, NP261 HD, NP263 HD), CV Joints, Driveshafts

Brakes:

Front Disc Brakes, Rear Disc Brakes (depending on configuration), ABS System, Parking Brake

Suspension:

Independent Front Suspension (IFS), Torsion Bar Suspension, Rear Leaf Spring Suspension, Shock Absorbers, Ball Joints, Bushings

Steering:

Power Steering System, Steering Gear, Tie Rods, Steering Column

Electrical:

Charging System (Alternator), Starting System (Starter Motor), Battery, Ignition System, Lighting (Headlamps, Taillamps, Interior), Fuses, Relays, Body Control Module (BCM), Powertrain Control Module (PCM)

HVAC:

Heating System, Air Conditioning System (Compressor, Evaporator, Condenser), Blower Motor, Climate Control Unit

Body:

Exterior Panels, Doors, Hood, Tailgate, Bumpers, Interior Trim, Seats, Glass, Mirrors

Diagnostics:

OBD-II Diagnostics, DTC Code Interpretation, Diagnostic Procedures, Wiring Diagrams

Maintenance:

Oil Change, Filter Replacement, Fluid Checks and Top-offs, Tire Rotation, Brake Inspections, Tune-up Procedures

Repair:

Engine Component Replacement (e.g., spark plugs, ignition coils, fuel injectors), Transmission Service and Repair, Brake Pad/Rotor Replacement, Suspension Component Replacement (e.g., ball joints, tie rods), Electrical Component Diagnosis and Replacement, HVAC System Repair

Troubleshooting:

Step-by-step diagnostic flowcharts for common and uncommon drivability issues, electrical faults, and mechanical problems.

Depth:

Comprehensive from basic scheduled maintenance and fluid changes to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.

📊 Manual Specifications

File Format:

Proprietary Web-Based Software

Print Quality:

N/A (Digital Format)

Binding Type:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

Access Method:

Internet Connection Required for initial access and updates; Browser-based

Licensing Type:

1-Year Access License (Renewable)

Data Source:

Licensed OE (Original Equipment) Materials from RepairSurge

⚙️ Engine Specifications

Engine Options:

4.8L Vortec V8 (LM7), 5.3L Vortec V8 (LM7), 6.0L Vortec V8 (LQ4), 8.1L Vortec V8 (Vortec 496)

4.8L Vortec V8 Horsepower:

Approx. 255 hp @ 5200 rpm

4.8L Vortec V8 Torque:

Approx. 285 lb-ft @ 4000 rpm

5.3L Vortec V8 Horsepower:

Approx. 270 hp @ 5200 rpm

5.3L Vortec V8 Torque:

Approx. 315 lb-ft @ 4000 rpm

6.0L Vortec V8 Horsepower:

Approx. 300 hp @ 4400 rpm

6.0L Vortec V8 Torque:

Approx. 360 lb-ft @ 4000 rpm

8.1L Vortec V8 Horsepower:

Approx. 340 hp @ 4000 rpm

8.1L Vortec V8 Torque:

Approx. 455 lb-ft @ 3200 rpm

Fuel System Type:

Sequential Electronic Fuel Injection (SEFI)

Recommended Fuel:

87 Octane Unleaded Gasoline (higher octane may be recommended for 8.1L engine under heavy load)

🔧 Transmission

Standard Transmission:

4-speed Automatic (4L60E on lighter duty 2500, 4L80E on heavier duty 2500/HD)

Optional Transmission:

5-speed Manual (NV4500 on specific 2500HD models)

Transmission Features:

Electronic Controls (4L60E/4L80E), Overdrive, Tow/Haul Mode (on automatics)

📐 Dimensions

Wheelbase Options:

130.0 in (Regular Cab, Short Bed), 143.5 in (Extended Cab, Short Bed / Regular Cab, Long Bed), 167.0 in (Extended Cab, Long Bed)

Gvwr Range:

8,500 lbs to 10,100 lbs (depending on configuration)

Curb Weight Range:

Approx. 4,800 lbs to 6,000 lbs

🛡️ Safety Features

NHTSA Front Impact Rating:

4/5 Stars (Driver), 4/5 Stars (Passenger)

Active Safety Features:

Anti-lock Braking System (ABS), Optional Daytime Running Lamps (DRL)

Passive Safety Features:

Dual Front Airbags, Seatbelt Pretensioners

💡 Technology Features

Infotainment Features:

Factory-installed AM/FM stereo with CD player, Cassette player (optional), Analog gauges with digital odometer and trip computer.

Driver Assistance Features:

Cruise Control, Fog Lamps (optional)

Connectivity Features:

No integrated Bluetooth or USB ports (aftermarket options available).

🔧 Maintenance

Oil Change Interval:

7,500 miles or 6 months (severe duty may require more frequent changes)

Transmission Fluid Change Interval:

100,000 miles (for severe use/towing, check manual)

Coolant Change Interval:

100,000 miles or 5 years (Dex-Cool)

Engine Oil Specification:

SAE 5W-30 Synthetic Blend (API Certified)

Transmission Fluid Specification:

Dexron III (for 4L60E/4L80E)

Coolant Specification:

GM P/N 12378515 (Orange Long-Life Coolant - Dex-Cool Compatible)

Known Issues:

Cracked exhaust manifolds (especially on 5.3L/6.0L), Fuel pump failure, Transmission cooler line leaks, Intake manifold gasket leaks (older models), Heater core leaks

Engine Oil Capacity 4.8L/5.3L:

5.5 quarts (with filter)

Engine Oil Capacity 6.0L:

6.0 quarts (with filter)

Engine Oil Capacity 8.1L:

7.0 quarts (with filter)

Transmission Fluid Capacity 4L60E:

Approx. 10.7 quarts (dry fill)

Transmission Fluid Capacity 4L80E:

Approx. 13.3 quarts (dry fill)

📚 Vehicle History

Brand Heritage:

GMC (General Motors Truck Company) has a long history dating back to 1902, specializing in trucks and commercial vehicles, known for durability and capability.

Model Evolution:

The 2000 Sierra 2500 is part of the GMT800 platform, which replaced the older C/K GMT400 generation. This represented a significant redesign with improved aerodynamics, interior comfort, and powertrain options.

Production Era:

1999-2006 (GMT800 platform)

Manufacturing Locations:

Fort Wayne, Indiana; Oshawa, Ontario, Canada

🏆 Awards & Recognition

Recognitions:

The GMT800 platform trucks, including the Sierra 2500, were generally well-regarded for their robust construction and towing capabilities, often praised by automotive publications for their utility.