🏷️ Basic Information

Make:

GMC

Model:

Sonoma

Year:

1995

Vehicle Type:

Compact Pickup Truck

Platform:

GMT-400

Chassis Code:

GMT-410

👋 Introduction

Target Audience:

Owners of 1995 GMC Sonoma trucks seeking to perform their own maintenance, repairs, or diagnostics, ranging from novice DIYers to experienced mechanics.

Value Proposition:

Provides comprehensive, licensed, OE-derived service information in a convenient, accessible digital format, offering cost savings over professional repair services and traditional print manuals.

Comparison To Print:

Outperforms traditional printed manuals in terms of accessibility, searchability, and cost-effectiveness. Offers instant access without the need for physical storage or transport.

Licensing:

Officially licensed and derived from Original Equipment (OE) materials, ensuring accuracy and authority, distinguishing it from unofficial or Haynes-style manuals.

Key Feature 1:

Instant online access via web browser.

Key Feature 2:

Licensed OE data for accuracy.

Key Feature 3:

Compatibility across multiple devices.

Key Feature 4:

Complete coverage of all major vehicle systems.

Key Feature 5:

Cost savings through DIY repairs.

📋 Manual Details

Manual Type:

Service and Repair Manual Software

Language:

English

Format:

Online Software (Web Browser Accessible)

Access Duration:

1 Year (with renewal options)

Data Source:

Licensed OE (Original Equipment) Materials

Developer:

RepairSurge

📖 Manual Coverage

Engine:

Comprehensive diagnosis, repair, and overhaul procedures for all gasoline engines. Includes fuel system, ignition system, lubrication system, cooling system, and emission control systems.

Transmission:

Detailed service and repair information for both manual and automatic transmissions. Includes removal, installation, internal component repair, and fluid specifications.

Drivetrain:

Coverage for front-wheel drive and rear-wheel drive configurations, including driveshafts, U-joints, differentials, and axles.

Brakes:

Full diagnostic and repair procedures for hydraulic brake systems, including front and rear disc/drum brakes, ABS (Anti-lock Braking System) components, and parking brake.

Suspension:

Detailed instructions for diagnosing and repairing front independent suspension (torsion bar or coil spring) and rear leaf spring suspension, including component replacement and alignment specifications.

Steering:

Complete information on power steering systems, steering columns, steering gear/rack and pinion, and linkage components.

Electrical:

Extensive coverage of the vehicle's electrical system, including wiring diagrams, component testing, charging system, starting system, lighting, instrumentation, and power accessories.

Bodywork:

Information on body panel repair, door mechanisms, interior trim, glass replacement, and exterior trim components.

HVAC:

Service and repair procedures for the heating, ventilation, and air conditioning (HVAC) system, including refrigerant handling, component replacement, and diagnostics.

Maintenance:

Routine maintenance tasks such as oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, and belt inspection/replacement.

Troubleshooting:

Systematic diagnostic procedures and flowcharts for identifying and resolving common vehicle issues.

Repair:

Step-by-step repair instructions for virtually all components and systems of the vehicle.

Component Replacement:

Detailed guides for replacing major and minor components, including engines, transmissions, alternators, starters, water pumps, fuel pumps, brake calipers, and more.

Diagnostics:

Advanced diagnostic techniques, including use of scan tools (where applicable for the era), electrical testing, and mechanical testing.

Depth:

Comprehensive, covering everything from basic fluid checks and tune-ups to complete engine and transmission rebuilds, complex electrical diagnostics, and body panel repairs. Designed for both DIY enthusiasts and professional mechanics.

📊 Manual Specifications

File Type:

Proprietary Web-Based Software

Compatibility:

PC, Laptop, Smartphone, Tablet via Web Browser

Features:

Searchable text, indexed content, potentially embedded diagrams and illustrations (though described as derived from OE materials, visual fidelity is implied).

Printability:

While not a printed manual, the digital format allows for printing of specific sections or pages if desired by the user.

Binding:

N/A (Digital Format)

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Option 1:

2.2L (134 ci) L4 OHV (Iron Duke)

Engine Option 1 Hp:

Approx. 112 hp

Engine Option 1 Torque:

Approx. 125 lb-ft

Engine Option 2:

4.3L (262 ci) V6 OHV (Vortec)

Engine Option 2 Hp:

Approx. 160-165 hp

Engine Option 2 Torque:

Approx. 235-240 lb-ft

Fuel Delivery:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Gasoline

Fuel Tank Capacity:

Typically 15.1 gallons (standard bed), 25.1 gallons (long bed)

🔧 Transmission

Transmission Option 1:

5-speed Manual Transmission

Transmission Option 2:

4-speed Automatic Transmission (4L60-E)

Drivetrain Layout:

Rear-Wheel Drive (RWD) or Four-Wheel Drive (4WD) available

📐 Dimensions

Wheelbase Short:

Approx. 108.3 inches (Standard Bed)

Wheelbase Long:

Approx. 122.5 inches (Long Bed)

Overall Length Short:

Approx. 185.1 inches (Standard Bed)

Overall Length Long:

Approx. 209.3 inches (Long Bed)

Width Excluding Mirrors:

Approx. 67.3 inches

Height:

Approx. 63.0 - 65.0 inches (depending on configuration)

Curb Weight Base:

Approx. 3,200 - 3,700 lbs (varies by configuration)

Bed Length Short:

Approx. 73.3 inches

Bed Length Long:

Approx. 98.3 inches

🛡️ Safety Features

NHTSA Frontal Driver:

Not explicitly rated under modern standards, but equipped with basic safety features for its era.

NHTSA Frontal Passenger:

Not explicitly rated under modern standards.

ABS:

Optional Anti-lock Braking System (ABS) available on rear wheels or four wheels, depending on configuration.

Airbags:

Driver-side airbag standard. Passenger airbag not available in 1995.

Seatbelts:

Three-point seatbelts for front occupants.

💡 Technology Features

Audio System:

Factory-installed AM/FM stereo with cassette player, optional CD player. Speaker configurations varied by trim level.

Cruise Control:

Optional

Power Windows Locks:

Optional on most trims, standard on higher trims or specific packages.

🔧 Maintenance

Oil Change Interval:

Typically every 3,000-5,000 miles or 3-6 months, depending on driving conditions. Check manual for specific recommendations.

Engine Coolant Flush:

Every 30,000 miles or 2 years.

Transmission Fluid Change:

Automatic: every 30,000-50,000 miles; Manual: every 50,000-100,000 miles. Consult manual for exact specification and procedure.

Spark Plug Replacement:

Varies by plug type (e.g., copper, platinum). Typically 30,000-60,000 miles. The 4.3L V6 often used 2 spark plugs per cylinder (12 total).

Engine Oil Type V6:

API SG or SH certified, SAE 10W-30 or 10W-40 (refer to owner's manual for temperature-specific viscosity recommendations).

Engine Oil Type I4:

API SG or SH certified, SAE 5W-30 or 10W-30.

Coolant Type:

Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water. GM specifies Dex-Cool for later models, but for '95, a universal green coolant is likely appropriate, though confirmation in the manual is key.

Transmission Fluid Automatic:

Dexron-III (or equivalent)

Transmission Fluid Manual:

GL-4 gear oil (SAE 75W-90 or 80W-90, consult manual for specifics)

Brake Fluid:

DOT 3

Power Steering Fluid:

GM Power Steering Fluid or Dexron-III (or equivalent)

Issue 1:

Brake wear and rotor warping, particularly on heavier-duty applications.

Issue 2:

Cooling system leaks, especially at the radiator and heater core.

Issue 3:

U-joint wear leading to clunking noises or vibration.

Issue 4:

Aging electrical components and wiring harnesses, leading to intermittent issues.

Issue 5:

The 4.3L V6's spider injection system (though less common in this generation than later ones) could develop leaks or issues.

📚 Vehicle History

Gm Truck Legacy:

GMC, as a division of General Motors, has a long-standing heritage in producing trucks and commercial vehicles, known for durability and capability.

Gmc Sonoma Introduction:

The Sonoma nameplate was introduced in 1982 as a replacement for the GMC S-15. The 1995 model is part of the second generation of the S-10/Sonoma platform (GMT-400), which debuted in 1994. This generation featured a significant redesign with a more aerodynamic appearance and improved chassis.

Production Years:

The GMT-400 platform for the Sonoma was produced from 1994 through 2003.

Manufacturing Locations:

GM assembly plants in North America, including locations like Shreveport, Louisiana, and Moraine, Ohio.

🏆 Awards & Recognition

Model Recognition:

The GMT-400 platform was generally well-received for its robust chassis and comfortable ride for a truck of its era. The 4.3L V6 was a popular and durable engine option.