Market Position:
The 1998 Chevrolet Tahoe was positioned as a full-size SUV offering utility, towing capability, and comfortable passenger transport, competing with vehicles like the Ford Expedition, Dodge Durango, and Jeep Grand Cherokee.
Competitive Analysis:
The Tahoe offered a robust V8 engine lineup and a more truck-like platform compared to some unibody competitors, appealing to buyers prioritizing towing and hauling capacity. Its interior comfort and available features also made it a strong contender in the family SUV segment.
Key Features:
Body-on-frame construction, V8 engine options, available 4-wheel drive, spacious interior, significant towing capacity, modern (for its time) styling.
Coverage Areas:
Engine, Transmission, Drivetrain, Brakes, Suspension, Steering, Electrical Systems, HVAC, Body, Chassis, Diagnostic Procedures, Maintenance Schedules, Troubleshooting
Page Count:
Thousands of pages (estimated for comprehensive OE-derived content)
Manual Type:
Service and Repair Manual Software
Format:
PDF Download (Digital Software)
Systems Covered:
Engine mechanical, fuel system, ignition system, cooling system, exhaust system, automatic transmission (4L60-E), transfer case (NP243, NP236), front axle, rear axle, driveshafts, suspension (front and rear), steering system, hydraulic brake system, anti-lock brake system (ABS), electrical system (wiring diagrams, component locations), lighting, instrument cluster, climate control (HVAC), body panels, interior trim, chassis components, safety systems.
Procedures Included:
Routine maintenance (oil change, filter replacement, fluid checks), troubleshooting guides, diagnostic procedures for all major systems, engine overhaul procedures, transmission repair and overhaul, brake system servicing (pads, rotors, lines), suspension component replacement (shocks, ball joints, control arms), steering system repair (tie rods, steering gear), electrical component testing and replacement, HVAC system diagnostics and repair, body panel repair, body hardware adjustments, interior trim removal and installation, diagnostic trouble code (DTC) interpretation and resolution.
Technical Depth:
Comprehensive. Covers everything from basic maintenance to complete engine and transmission rebuilds, detailed electrical troubleshooting, and bodywork. Includes torque specifications, component clearances, diagnostic flowcharts, and factory-approved repair methods.
Primary Engine:
5.7L V8 (Vortec 350)
Horsepower:
255 hp @ 4600 rpm
Torque:
330 lb-ft @ 2800 rpm
Fuel System:
Sequential Electronic Fuel Injection (SEFI)
Bore X Stroke:
4.00 in x 3.48 in (101.6 mm x 88.4 mm)
Oil Capacity:
4.5 quarts (4.3 liters) with filter
Recommended Oil Viscosity
Recommended Oil Viscosity:
SAE 5W-30
Standard Transmission:
4-speed automatic (4L60-E)
Optional Transmission:
N/A (Automatic was standard)
Transmission Features:
Electronic controls, overdrive, lock-up torque converter.
Transmission Fluid Type:
Dexron III (or equivalent)
Transmission Fluid Capacity
Transmission Fluid Capacity:
Approximately 11.5 quarts (10.9 liters) (dry fill)
Wheelbase:
117.5 inches (2984.5 mm)
Length:
198.8 inches (5049.5 mm)
Width:
78.8 inches (2001.5 mm)
Height:
72.7 inches (1846.6 mm)
Curb Weight:
Approximately 4,600 - 4,900 lbs (2087 - 2223 kg) depending on configuration
Gross Vehicle Weight Rating Gvwr:
6,400 lbs (2903 kg) to 7,000 lbs (3175 kg) depending on model
Cargo Volume Behind 2Nd Row:
Approx. 45.7 cu ft
Cargo Volume Behind 1St Row:
Approx. 92.0 cu ft
NHTSA Front Impact Driver:
Not rated (older testing standards)
NHTSA Front Impact Passenger:
Not rated (older testing standards)
IIHS Moderate Overlap Front:
Acceptable (for its time)
Active Features:
Anti-lock Braking System (ABS), Available Traction Control (early systems)
Passive Features:
Dual front airbags, front and rear seat belts, reinforced safety cage construction.
Infotainment Features:
Factory-installed AM/FM stereo with cassette player, optional CD player, optional premium sound system.
Driver Assistance Features:
Limited to ABS and available traction control for the era.
Connectivity Features:
N/A (No integrated Bluetooth or USB connectivity).
Oil Change Interval:
Every 3,000 to 5,000 miles or 3-6 months (depending on driving conditions and oil type used)
Transmission Fluid Change Interval:
Every 30,000 to 60,000 miles or 2-3 years
Coolant Flush Interval:
Every 30,000 to 60,000 miles or 2-3 years
Engine Coolant Type:
GM Type II Extended Life Coolant (Green) or equivalent
Power Steering Fluid Type:
GM Power Steering Fluid or Dexron III ATF
Known Issues:
Potential for intake manifold gasket leaks, coolant leaks from the rear of the engine (intake crossover), fuel pump failures, ABS sensor issues, rear main seal leaks, and overdrive planetary gear wear in high-mileage transmissions.
Common Repair Item:
Water pump replacement
Common Repair Item 2:
Serpentine belt and tensioner replacement
Brand Heritage:
Chevrolet, founded in 1911, has a long history of producing a wide range of vehicles, from compact cars to heavy-duty trucks. The Tahoe nameplate, introduced in 1995, evolved from the Chevrolet K-5 Blazer and became a cornerstone of GM's full-size SUV lineup.
Model Evolution:
The 1998 model year represents the second generation of the Tahoe (GMT800 platform), which debuted for the 1995 model year as a successor to the K5 Blazer. This generation introduced a more modern chassis and styling, with the 1998 model year being a carryover from previous years within this generation prior to the major redesign in 2000.
Production Location:
Janesville, Wisconsin, USA (GM's primary SUV assembly plant)
