1990 Chevrolet G30

Introduction

The 1990 Chevrolet G30 is a full-size van available with a variety of engine and transmission options. The base engine is a 5.7L V8 with 210 horsepower and 300 lb-ft of torque. Other engine options include a 6.2L V8 with 260 horsepower and 330 lb-ft of torque, and a 7.4L V8 with 300 horsepower and 400 lb-ft of torque. Transmission options include a 4-speed automatic, a 5-speed manual, and a 6-speed manual.

Owners of the 1990 Chevrolet G30 generally praise its spacious interior, comfortable ride, and powerful engines. However, the vehicle has been known to experience some issues, which we will detail below.

Engine

5.7L V8

• Intake manifold gasket failure: Causes coolant and oil leaks, as well as engine overheating. Symptoms include white smoke from the exhaust, low coolant levels, and poor engine performance. Solution: Replace the intake manifold gasket. Estimated Cost to Fix: $500 - $1,000+
• Head gasket failure: Causes coolant and oil leaks, as well as engine overheating and decreased power. Symptoms include white smoke from the exhaust, low coolant levels, and rough idling. Solution: Replace the head gasket. Estimated Cost to Fix: $1,000 - $2,000+

6.2L V8

• No engine issues found

7.4L V8

• Valve seat recession: Causes valve damage, leading to decreased engine power and fuel economy. Symptoms include rough idling, misfires, and increased oil consumption. Solution: Repair or replace the affected valves and valve seats. Estimated Cost to Fix: $1,500 - $2,500+

Transmission

4-speed automatic

• Torque converter failure: Causes a loss of power and transmission shudder. Symptoms include slipping gears, delayed engagement, and overheating. Solution: Replace the torque converter. Estimated Cost to Fix: $1,000 - $1,500+
• Transmission fluid leaks: Can lead to transmission failure. Symptoms include low transmission fluid levels, slipping gears, and noise from the transmission. Solution: Replace the leaking seals or gaskets. Estimated Cost to Fix: $200 - $500+

5-speed manual

• Clutch failure: Causes difficulty shifting gears and a loss of power. Symptoms include slipping gears, grinding noises, and a burning smell. Solution: Replace the clutch. Estimated Cost to Fix: $500 - $1,000+

6-speed manual

• No transmission issues found

Suspension

• Front ball joint failure: Causes a loss of control and premature tire wear. Symptoms include clunking noises, vibration, and uneven tire wear. Solution: Replace the ball joints. Estimated Cost to Fix: $300 - $500+ per side
• Rear leaf spring breakage: Causes a loss of stability and handling. Symptoms include a sagging rear end, uneven tire wear, and a rough ride. Solution: Replace the leaf springs. Estimated Cost to Fix: $500 - $1,000+ per side

Electrical

• Alternator failure: Causes a loss of power and electrical issues. Symptoms include dim headlights, flickering gauges, and a dead battery. Solution: Replace the alternator. Estimated Cost to Fix: $300 - $600+
• Starter failure: Prevents the engine from starting. Symptoms include a clicking noise when trying to start the engine, or no response at all. Solution: Replace the starter. Estimated Cost to Fix: $200 - $400+

Exterior

• Rust: Can affect the body panels, frame, and suspension components. Symptoms include visible rust spots, bubbling paint, and weakened metal. Solution: Remove the rust and apply rust protection. Estimated Cost to Fix: Varies depending on the extent of the damage.

Interior

• Cracked dashboard: Can be caused by sun exposure or extreme temperature changes. Symptoms include visible cracks in the dashboard material. Solution: Replace the dashboard. Estimated Cost to Fix: $500 - $1,000+
• HVAC system failure: Can cause a lack of heating or cooling. Symptoms include no airflow, weak airflow, or incorrect temperature settings. Solution: Diagnose and repair the HVAC system, which may involve replacing parts such as the blower motor or compressor. Estimated Cost to Fix: $300 - $1,000+

Summary

Based on the available information, the 1990 Chevrolet G30 has a range of issues that can vary depending on the engine and transmission options. The most common issues include intake manifold gasket failure, torque converter failure, front ball joint failure, and alternator failure. The severity of these issues can range from minor annoyances to major repairs, with costs ranging from a few hundred dollars to over $2,000. While the G30 offers a spacious interior and powerful engines, potential buyers should be aware of these potential issues before making a purchase.