The Power Brakes & Power Steering Failure in My Chevrolet Astro

The Chevrolet Astro, a rear-wheel drive minivan, was manufactured from 1985 to 2005. Despite its longevity, the Astro was not exempt from mechanical issues, especially power brake and power steering failure.

Power Brakes

Chevrolet technical service bulletins (TSBs) indicate that the Astro's anti-lock brake system (ABS) may fail due to hydraulic pressure issues. In certain cases, the brake pedal may self-apply during full lock turns or at low speeds. This may also be accompanied by grinding noises.

Power Steering

Chevrolet TSBs report that the Astro's hydraulic power system may cause power steering performance issues while turning or braking. Service bulletins state that power steering problems are primarily indicated by excessive front end noise. Power steering failure may result in difficulty or inability to turn the steering wheel.

Solution

Hydraulic brake issues should first be addressed by adding hydraulic brake fluid. If brake problems persist, the anti-lock brake fuses and sensors should be examined. Prior to repairing any power steering components, power steering fluid should be checked and filled if necessary. If fluid level is not a problem, the power steering pump should be professionally diagnosed.

References

• Edmunds.com: Chevrolet Astro
• Auto Beef: 2002 Chevrolet Astro Technical Service Bulletins
• AA1Car: Antilock Brake System
• AA1Car: Electric Power Steering

Resources

• AA1Car: Brake Diagnosis and Repair
• Isomedia: Troubleshooting Power Steering Problems