Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1989G 30 VAN V8-350 5.7LREPAIR AND DIAGNOSISSTEERING AND SUSPENSIONTECHNICAL SERVICE BULLETINS
1989 Chevrolet G 30 Van V8-350 5.7L
Steering and Suspension: Technical Service Bulletins
1989 Chevrolet G 30 Van V8-350 5.7LSECTION Technical Service Bulletins
- Customer Interest
- Power Steering - Fluid Leaks Due to Extreme Low Temps
- Suspension, Front - Bottoming Noise
- Aluminum Wheels - Cosmetic Damage During Balancing
- Tires - Slipping on Rim
- Tires (Front) - Irregular Wear
- Suspension - Noise on Turns or Slapping Sound Over Bumps
- Suspension (Front) - Bottoming Noise
- Wheel Alignment - Front Tire Wear on Postal Vehicles
- P/S - Reduced Assist When Cold
- Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
- Tires/Wheels - Vibration Shortly After Tires Are Mounted on Rim
- By Symptom
- Abnormal wear/deterioration
- Abnormal/Uneven wear
- Customer Interest
- Power Steering - Fluid Leaks Due to Extreme Low Temps
- Suspension, Front - Bottoming Noise
- Aluminum Wheels - Cosmetic Damage During Balancing
- Tires - Slipping on Rim
- Tires (Front) - Irregular Wear
- Suspension - Noise on Turns or Slapping Sound Over Bumps
- Suspension (Front) - Bottoming Noise
- Wheel Alignment - Front Tire Wear on Postal Vehicles
- P/S - Reduced Assist When Cold
- Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
- Tires/Wheels - Vibration Shortly After Tires Are Mounted on Rim
- Difficult steering
- Leaks
- Noise
- Poor steering/ride control
- Vibration
- All Technical Service Bulletins
- Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
- Vehicle - Engine And Sub-Systems Flushing Recommendations
- Wheels/Tires - Use Of Nitrogen Gas In Tires
- Tires - Information On Proper Tire Pressure
- Suspension - Shock Absorber/Strut Fluid Leak Information
- Power Steering - Fluid Leaks Due to Extreme Low Temps
- Steering/Suspension - Wheel Alignment Specifications
- Suspension - Chassis Lubrication Importance
- Steering - System Bleed Procedures
- P/S - Misdiagnosed Crack in Pump Pulley
- Suspension - Shock Absorber/Strut Replacement Guidlines
- Suspension, Front - Bottoming Noise
- Aluminum Wheels - Cosmetic Damage During Balancing
- Wheels (Steel) - Damage Due to Improper Mounting
- Wheels - Sealing Leaking Cast Aluminum
- Aluminum Wheels - New Coated Wheel Weights
- Wheels - Finish Damage During Off Car Balancing
- Warranty - Guidelines for Using E0420 Wheel Replace
- Warranty - OE Chrome Plated Aluminum Wheel ID
- Tires - Slipping on Rim
- Tires (Front) - Irregular Wear
- Tire - Tread Chunking/Torn bead
- Tires - Speed Rated Information
- Wheels - Locking Nuts, Component Replacement
- Suspension - Noise on Turns or Slapping Sound Over Bumps
- Suspension (Front) - Bottoming Noise
- Wheel Alignment - Front Tire Wear on Postal Vehicles
- Tires/Wheels - Wheel Weight Usage Precautions
- P/S - Reduced Assist When Cold
- Alignment - The Importance of Four Wheel Alignment
- Wheels - Chrome Wheel Brake Dust Accumulation/Pitting
- Wheels/Tires - Upsized Wheel/Tire Characteristics
- Wheels/Tires - Chrome/Steel Valve Stem Cap Precautions
- Wheels/Tires - Accessory Wheel And Tire Information
- Wheels/Tires - Replacement Wheel Weight Information
- Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
- Tires/Wheels - Tire Puncture Repair Procedures
- Wheels - Changing Procedures/Precautions
- Wheels/Tires - Refinishing Aluminum Wheels
- Tires/Wheels - Vibration Shortly After Tires Are Mounted on Rim
- Tires/Wheels - OE Tire Shake/Vibration Information
- Tires/Wheels - Information on Tire Radial Force Variation (RFV)
- Wheels - Chromed Aluminum Wheel Staining/Pitting/Corrosion
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.