1999 GMC K2500 Suburban

1999 GMC K2500 Suburban

The 1999 GMC K2500 Suburban is a full-size SUV that offers a combination of power, space, and towing capabilities. It comes standard with a 5.7L V8 engine producing 255 horsepower and 330 lb-ft of torque. The K2500 is also available with a 6.0L V8 engine generating 300 horsepower and 360 lb-ft of torque. The available transmission options include a 4-speed automatic transmission for the 5.7L engine and a 5-speed automatic transmission for the 6.0L engine.

Owners of the K2500 generally appreciate its powerful engines, spacious interior, and comfortable ride quality. However, they may encounter some issues, as outlined below:

Engine

5.7L V8

• Intake Manifold Gasket Failure: The intake manifold gasket can fail, causing a vacuum leak and rough idle. The issue is more common in vehicles with high mileage.
• Intake Manifold Replacement: Replace the intake manifold gasket and torque the bolts to the specified value.
• $500 - $1,000+
• None Found

6.0L V8

• Stuck Throttle Body: The throttle body can become stuck, leading to reduced engine power and acceleration problems.
• Throttle Body Replacement: Replace the throttle body with a new unit.
• $300 - $600+
• NHTSA Campaign Number: 99V035000

Transmission

4-Speed Automatic

• No Issues Found

5-Speed Automatic

• Shift Solenoid Failures: The shift solenoids can fail, causing shifting problems and transmission slippage.
• Shift Solenoid Replacement: Replace the faulty shift solenoids.
• $1,000 - $2,000+
• None Found

Suspension

• Front Suspension Wear: The front suspension components, such as ball joints and tie rods, can wear out prematurely, leading to decreased handling and ride quality.
• Suspension Component Replacement: Replace the worn suspension components.
• $500 - $1,500+
• None Found

Electrical

• Instrument Cluster Failure: The instrument cluster may malfunction, displaying incorrect or no information.
• Instrument Cluster Replacement: Replace the faulty instrument cluster.
• $300 - $700+
• NHTSA Campaign Number: 99V141000

Exterior

• Tailgate Corrosion: The tailgate can develop corrosion, especially around the bottom edge.
• Tailgate Replacement: Replace the corroded tailgate.
• $500 - $1,000+
• None Found

Interior

• HVAC Blend Door Actuator Failure: The HVAC blend door actuator can fail, resulting in problems with temperature control.
• Actuator Replacement: Replace the faulty actuator.
• $200 - $500+
• None Found

Summary

The 1999 GMC K2500 Suburban is a reliable and powerful vehicle, but it may experience occasional issues. The most common problems are related to the intake manifold, throttle body, shift solenoids, suspension components, instrument cluster, tailgate, and HVAC blend door actuator. The severity and cost of these issues vary, but most can be resolved for under $1,000.