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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 909 (POWER STEERING SYSTEM)REPAIR INSTRUCTIONSCHECKING & ADDING POWER STEERING FLUID
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Checking & Adding Power Steering Fluid

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Checking & Adding Power Steering Fluid
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: When adding fluid or making a complete fluid change, always use the proper power steering fluid. Failure to use the proper fluid will cause hose and seal damage and fluid leaks.
  1. Clean the area surrounding the reservoir cap.
  2. Remove the reservoir cap.
  3. Inspect the power steering pump fluid level at regular intervals. Use the appropriate procedure below.

    Add fluid when required. Refer to FLUID AND LUBRICANT RECOMMENDATIONS in Maintenance and Lubrication.

    Fluid Is Cold 

    1. 3.1. Remove the reservoir cap.
    2. 3.2. Inspect the fluid level on the capstick.
    3. 3.3. Ensure that the fluid level is between the bottom of the COLD/FULL mark and the end of the capstick.

    Fluid Is Hot 

    1. 3.1. Run the engine until the fluid reaches about 80°C (170°F).
    2. 3.2. Turn the engine OFF.
    3. 3.3. Remove the reservoir cap.
    4. 3.4. Inspect the fluid level on the capstick.
    5. 3.5. Ensure that the fluid level is between the HOT/FULL and the COLD/FULL marks on the capstick.
  4. If the fluid level is low, add power steering fluid to the proper level.
  5. Install the reservoir cap.
  6. When checking the fluid level after servicing the steering system, bleed the air from the system. Refer to BLEEDING THE POWER STEERING SYSTEM .
RENDER: 1.0x

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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.