1999 GMC C3500 Service & Repair Manual Software

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🏷️ Basic Information Identification Make: GMC Model: C3500 Year: 1999 Generation Generation Name: GMT400 (Third Generation) Codes Chassis Code: GMT4xx 👋 Introduction Market Position Positioning: Essential diagnostic and repair resource...

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Taper: Truck

Distributeur:

UGS: 195540

Mots clés: 1999 C Series C3500 Cars GMC Truck

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Model:

C3500

Year:

Generation

Generation Name:

GMT400 (Third Generation)

Codes

Chassis Code:

GMT4xx

👋 Introduction

Market Position

Positioning:

Essential diagnostic and repair resource for 1999 GMC C3500 owners and independent repair shops.

Competitive Analysis

Advantage:

More convenient, accessible, and cost-effective than outdated printed manuals. Offers licensed OE data for accuracy.

Key Features

Feature 1:

Instant online access from any internet-connected device.

Feature 2:

Official, licensed information ensuring accuracy and completeness.

Feature 3:

Covers all major systems, enabling comprehensive repairs and maintenance.

Target Audience

Audience:

DIY enthusiasts, independent auto repair technicians, fleet maintenance managers.

📋 Manual Details

Coverage Areas

Primary Coverage:

Comprehensive service and repair information

Secondary Coverage:

Maintenance, diagnostics, troubleshooting, adjustments, repairs, specifications

Page Count

Estimated Page Count:

Extensive (digital format, equivalent to thousands of printed pages)

Manual Type

Type:

Official Service and Repair Manual Software

Language

Language:

English

Format

Format:

Online Digital Software (Web Browser Accessible)

Access Method:

Internet Connection Required

License

Licensing:

Officially Licensed, Licensed Information Derived from OE Materials

Access Duration

Duration:

One Year of Access (with options for renewal discounts)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine assembly, cylinder head, block, pistons, crankshaft, camshaft, timing, lubrication system, cooling system

Engine Performance:

Fuel system, ignition system, emission control systems, engine diagnostics

Transmission Drivetrain:

Automatic transmission (e.g., 4L80-E), manual transmission (if applicable), transfer case (4WD), driveshafts, axles, differentials

Brakes:

Front disc brakes, rear drum or disc brakes, parking brake, hydraulic system, ABS (Anti-lock Braking System)

Steering:

Power steering system, steering column, steering gear/rack and pinion, steering linkage

Suspension:

Front independent suspension (e.g., torsion bar or coil spring), rear solid axle, leaf springs or coil springs, shock absorbers, control arms

Electrical System:

Battery, charging system, starting system, lighting system, instrument cluster, power windows, locks, mirrors, wipers

Body And Chassis:

Frame, body panels, doors, hood, tailgate, bumpers, interior trim, seats, glass, weatherstripping

HVAC:

Heating, ventilation, and air conditioning (HVAC) system components, controls, refrigerant system

Wiring Diagrams:

Detailed electrical wiring schematics for all systems

Procedures Included

Routine Maintenance:

Oil changes, fluid checks and changes, filter replacements, spark plug replacement, belt inspections and replacement

Component Repair:

Engine overhaul, transmission rebuild, brake caliper replacement, suspension arm replacement, steering rack repair

Troubleshooting:

Diagnostic procedures for common and uncommon issues, fault code interpretation

Diagnostics:

On-Board Diagnostics (OBD-II) system, scan tool usage, specific component testing

Adjustments:

Wheel alignment, headlight aiming, parking brake adjustment

Replacements:

Component replacement procedures for all major systems

Specifications:

Torque specifications, clearances, fluid capacities, electrical values

Technical Depth

Depth:

Comprehensive: Covers everything from basic maintenance to complete engine and transmission overhauls, including advanced diagnostics.

Diagnostic Tools:

Information relevant to using OBD-II scanners and specific diagnostic equipment

Expert Level:

Suitable for professional technicians and advanced DIY enthusiasts

📊 Manual Specifications

File Format

Digital Format:

Web-based application, accessible via standard web browsers

Print Quality

Printability:

Content is designed for easy viewing and printing of individual sections

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Options:

Vortec 7.4L (454ci) V8 (L29); Vortec 5.7L (350ci) V8 (L31); 5.0L (305ci) V8 (L30 - less common on C3500, more on C1500/C2500 but possible)

Performance

7.4L L29 Horsepower:

Approx. 295 hp @ 4000 rpm

7.4L L29 Torque:

Approx. 410 lb-ft @ 3200 rpm

5.7L L31 Horsepower:

Approx. 255 hp @ 4600 rpm

5.7L L31 Torque:

Approx. 330 lb-ft @ 2800 rpm

Fuel System

Fuel Delivery:

Sequential Multi-Port Fuel Injection (MPFI)

Fuel Type:

Unleaded gasoline (Regular 87 octane recommended)

Engine Management

Powertrain Control Module (PCM) controlling fuel, ignition, and emissions

Cooling System

Coolant Type:

Dex-Cool (Orange silicate-free) or equivalent OAT coolant recommended for GM vehicles of this era, though earlier specs might call for traditional green coolant. Manual will specify.

🔧 Transmission

Standard

Standard Transmission Type:

4-speed automatic (e.g., 4L80-E heavy-duty)

Optional

Optional Transmission Type:

5-speed manual (e.g., NV4500 heavy-duty - less common on C3500, but available)

Features

Transmission Fluid Type:

Dexron III (or equivalent) for automatic transmissions. Manual will specify for NV4500.

Transfer Case:

New Process NP246 (or similar electronic shift transfer case for 4WD models)

📐 Dimensions

Exterior

Body Styles:

Regular Cab, Extended Cab; Fleetside (bed) and Chassis Cab configurations

Wheelbase Options:

Approx. 130" (Regular Cab), 158" (Extended Cab), and longer for chassis cab

Weights

Gvwr:

Typically 9,900 lbs to 11,000 lbs (depending on configuration and options)

Curb Weight:

Varies significantly by configuration, generally 5,000 - 6,000 lbs+

🛡️ Safety Features

Ratings

NHTSA Front Impact Rating:

Not directly comparable to modern standards; typically focused on specific components. Manual will detail relevant structural safety.

Active Features

Available Anti-lock Braking System (ABS) on 4-wheel disc or front disc/rear drum configurations

Passive Features

Airbags:

Driver-side airbag standard

Seat Belts:

Three-point seat belts with pretensioners

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM stereo with cassette and optional CD player. Speaker configurations vary.

Driver Assistance

Cruise Control:

Standard or optional cruise control system.

Connectivity

OBD Ii:

Equipped with OBD-II diagnostic port for emissions and engine diagnostics.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000-7,500 miles or 6-12 months, depending on driving conditions and oil type (refer to manual for specifics).

Transmission Fluid Change:

Every 30,000-100,000 miles for automatic transmission (severe vs. normal use), consult manual for specific interval and procedure for filter replacement.

Spark Plug Replacement:

Typically 100,000 miles for platinum or iridium plugs, less for conventional plugs (check specific engine/plug type).

Coolant Flush:

Every 50,000-100,000 miles for Dex-Cool, or as recommended by coolant manufacturer.

Fluid Specifications

Engine Oil Spec:

GM Dexos or API certified synthetic blend/conventional oil, viscosity typically 5W-30 for 5.7L and 5W-30 or 10W-30 for 7.4L (refer to manual for exact spec based on temperature).

Engine Oil Capacity:

5.7L: approx. 4.5 quarts (with filter); 7.4L: approx. 7 quarts (with filter)

Brake Fluid Spec:

DOT 3 or DOT 4 (check reservoir cap or manual)

Known Issues

Common Issue 1:

Intake manifold gasket leaks (especially on 5.7L LT1/L31 engines), leading to coolant or oil loss.

Common Issue 2:

Cracked exhaust manifolds (especially on 7.4L engines), causing exhaust leaks and ticking sounds.

Common Issue 3:

Fuel pump failures; often preceded by whining sounds.

Common Issue 4:

Transmission issues (e.g., 4L80-E solenoid pack failure, torque converter clutch slippage).

Common Issue 5:

Heater core leaks and HVAC blower motor issues.

Recommended Filters

Oil Filter Part Number Example:

AC-Delco PF1218 (or equivalent for the specific engine)

📚 Vehicle History

Brand Heritage

Heritage:

GMC (General Motors Truck Company) has a long history of producing robust trucks and commercial vehicles, emphasizing durability and capability.

Model Evolution

Model Lineage:

The C/K series, including the C3500, is part of a long-standing line of full-size Chevrolet and GMC trucks. The GMT400 platform represented a significant modernization.

Production

Platform:

GMT400

Production Years Gmt400 C Series:

1988-1998 (primary range, with some overlap/updates into early 2000s for specific models/markets)

Manufacturing Locations:

Various GM assembly plants in North America (e.g., Fort Wayne, Indiana; Oshawa, Ontario)

🏆 Awards & Recognition

Recognitions

Truck Of The Year Gmt400 Era:

While not specific to the C3500 alone, the GMT400 platform trucks (including Silverado/Sierra) often received accolades for their engineering and capability during their production run.