1. Gather Your Supplies:
* New Power Steering Fluid: Use the correct type recommended in your owner's manual. Dexron II or III ATF (Automatic Transmission Fluid) is commonly used in vehicles of this era. Check your manual to be absolutely sure.
* Funnel: A flexible funnel with a long spout is helpful.
* Drain Pan: Large enough to hold several quarts of fluid.
* Wrench: The size needed to remove the power steering fluid drain plug (usually a 10mm or 13mm socket, but check your owner's manual).
* Jack and Jack Stands (Optional but Recommended): This makes access easier and safer.
* Gloves: To protect your hands from the fluid.
* Rags or Shop Towels: For cleaning up spills.
* New Fluid Reservoir Cap (Optional): If yours is cracked or damaged.
2. Prepare the Vehicle:
* Park on a level surface and engage the parking brake.
* If using a jack, safely jack up the front of the vehicle and secure it on jack stands. Never work under a vehicle supported only by a jack.
* Locate the power steering fluid reservoir. This is usually a plastic reservoir near the engine.
* Locate the power steering fluid drain plug. This is typically on the bottom of the power steering pump or gear. Your owner's manual will have a diagram.
3. Drain the Old Fluid:
* Remove the power steering fluid reservoir cap.
* Position the drain pan under the drain plug.
* Carefully loosen and remove the drain plug. The old fluid will drain out, so be prepared for a bit of a mess. Let it drain completely.
* Once drained, replace the drain plug and tighten it securely.
4. Fill the Reservoir:
* Add new power steering fluid to the reservoir. Refer to your owner's manual for the correct capacity. Don't overfill. The reservoir usually has markings indicating the minimum and maximum fill lines.
* Start the engine and run it for a few minutes. This circulates the fluid through the system.
* Turn the steering wheel fully lock-to-lock several times. This helps to work the new fluid through the entire system. Turn it slowly to avoid overstressing the pump.
* Check the fluid level and add more if needed. Top it off to the "full" line.
* Turn off the engine.
5. Check for Leaks:
* Carefully inspect the area around the power steering pump and hoses for any leaks.
6. Clean Up:
* Dispose of the old power steering fluid properly. Check your local regulations for proper disposal of used automotive fluids.
Important Considerations:
* Consult your owner's manual: This is crucial. The exact location of components, fluid type, and capacity will vary slightly depending on the specific model and trim level of your Suburban.
* Safety First: Always use proper safety precautions when working under a vehicle.
* Fluid Type: Using the incorrect fluid can damage your power steering system. Double-check your manual for the specified type.
* Difficulty: If you're uncomfortable working on your vehicle or are unsure about any step, it's best to take it to a qualified mechanic.
This guide provides a general overview. Always refer to your 1987 Chevy Suburban's owner's manual for specific instructions and safety information. Remember that this is a potentially messy job, so be prepared.
