🏷️ Basic Information

Make:

GMC

Model:

K2500

Year:

1994

Chassis Code:

GMT400

👋 Introduction

Target Audience:

DIY enthusiasts, independent repair shops, GMC K2500 owners seeking reliable repair information

Advantages:

Licensed OE information, digital convenience, cost-effectiveness compared to printed manuals, year-long access

Feature 1:

Instant online access from any internet-connected device (PC, smartphone, tablet)

Feature 2:

Officially licensed and derived from Original Equipment (OE) materials

Feature 3:

Comprehensive coverage for all major vehicle systems

Feature 4:

User-friendly interface with intuitive navigation

📋 Manual Details

Primary Coverage:

Service and Repair

Estimated Pages:

Extensive (Digital Access)

Type:

Online Service and Repair Manual Software

Language:

English

Format:

Online/Web-based Access

📖 Manual Coverage

Engine Mechanical:

Complete overhaul, diagnostics, tune-up, cooling system, fuel system, lubrication system, exhaust system

Engine Electrical:

Ignition system, starting system, charging system, engine control module (ECM) diagnostics, wiring diagrams

Transmission:

Automatic & Manual: overhaul, diagnostics, fluid service, torque converter, valve body

Drivetrain:

Front axle, rear axle, driveshaft, U-joints, differential, transfer case (if applicable for 4x4)

Suspension:

Front and rear suspension components, shock absorbers, springs, ball joints, control arms, bushings

Steering:

Steering gear, power steering pump, steering linkage, steering column

Brakes:

Front and rear brake systems (disc/drum), hydraulic system, ABS (if equipped), parking brake

Electrical Body:

Lighting, wipers, horn, power windows, power locks, instrument cluster, audio system, HVAC controls

HVAC:

Heating, ventilation, air conditioning system components, diagnostics, refrigerant handling

Body:

Body panels, doors, hoods, tailgates, interior trim, glass, bumpers

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks, inspections

Troubleshooting:

Diagnostic procedures for common and uncommon issues, fault codes, symptom-based troubleshooting

Repair:

Step-by-step repair procedures for all major components and systems

Overhaul:

Complete engine, transmission, and differential overhaul procedures

Diagnostics:

In-depth diagnostic trees and explanations for electrical and mechanical systems

Depth:

Comprehensive OE-level detail, suitable for professional technicians and advanced DIYers

📊 Manual Specifications

Access Method:

Web browser access via subscription

Quality:

High-resolution digital content

Binding:

N/A (Digital)

Paper:

N/A (Digital)

⚙️ Engine Specifications

Engine Code Gas 1:

L05

Engine Description Gas 1:

5.7L (350 cu in) V8 OHV (Small Block Chevrolet)

Horsepower Gas 1:

Approx. 200-210 HP @ 4000 RPM (varies slightly by application)

Torque Gas 1:

Approx. 300-310 lb-ft @ 2400 RPM (varies slightly by application)

Fuel System:

Multi-port Fuel Injection (MPFI)

Engine Code Gas 2:

L31 (introduced late 1994/early 1995 model year for some variants, primarily Vortec heads)

Engine Description Gas 2:

5.7L (350 cu in) V8 OHV Vortec

Engine Code Diesel:

6.5L

Engine Description Diesel:

6.5L (395 cu in) V8 OHV Turbo-Diesel (LM0 or L65 variations)

Compression Ratio Gas 1:

8.3:1

Fuel Type:

Unleaded Gasoline (87 Octane Recommended)

🔧 Transmission

Transmission Type Std:

4-Speed Automatic (4L60-E)

Transmission Type Opt 1:

5-Speed Manual (NV4500)

Transmission Features:

Electronic controls for 4L60-E, robust construction for NV4500

📐 Dimensions

Wheelbase Std:

130 inches (approx.)

Length Std:

224 inches (approx.)

Width Std:

79.7 inches (approx.)

Height Std:

74.8 inches (approx.)

Curb Weight Std:

Approx. 5,000 - 5,500 lbs (varies by configuration)

Gvwr Std:

7,200 lbs (approx.)

Payload Capacity Std:

Approx. 2,000 lbs (varies)

🛡️ Safety Features

NHTSA Overall Rating:

Not Rated (as per modern standards)

Active Feature 1:

Anti-lock Braking System (ABS) - Rear wheels only standard, optional 4-wheel ABS

Passive Feature 1:

Seat belts with pretensioners

Passive Feature 2:

High-strength steel frame and body construction

💡 Technology Features

Infotainment System:

Basic AM/FM stereo, cassette player, optional CD player

Driver Assistance Features:

Limited to ABS (optional)

Connectivity:

N/A (No built-in Bluetooth or USB ports)

🔧 Maintenance

Oil Change Interval:

Every 3,000 miles or 3 months (typical recommendation for this era, consult manual for specific engine)

Transmission Fluid Change:

Every 30,000 - 60,000 miles (depending on usage and type, consult manual)

Coolant Flush:

Every 30,000 miles or 2 years

Engine Oil Type:

API SG or SH, SAE 5W-30 or 10W-30 (consult manual for temperature ranges)

Transmission Fluid Type:

Dexron-III Automatic Transmission Fluid (ATF)

Coolant Type:

Ethylene Glycol based, green coolant (50/50 mix with distilled water)

Brake Fluid Type:

DOT 3

Issue 1:

Intake manifold gasket leaks (common on many GM V8s of this era)

Issue 2:

Rear main seal leaks (especially on higher mileage examples)

Issue 3:

Transmission cooler line leaks or internal issues on 4L60-E

Issue 4:

ABS sensor failures (if equipped)

Issue 5:

Rust issues, particularly on rockers, cab corners, and bed sides, depending on climate.

📚 Vehicle History

Heritage:

GMC has a long history of producing robust trucks and commercial vehicles, known for durability and capability.

Evolution:

The 1994 K2500 is part of the GMT400 platform, which marked a significant redesign for GM trucks, introducing a more aerodynamic and comfortable design compared to its predecessors.

Production Period:

GMT400 platform: 1988-1998 (with significant updates for 1995 including Vortec engines and revised interiors)

🏆 Awards & Recognition

Recognitions:

Generally regarded as a reliable and workhorse truck for its era. Specific awards for the 1994 model year are not prominently documented, but the GMT400 platform was well-received for its comfort and improved ride quality.