According to the manufacturer's recommendation, the fluid in the power steering system is not changed during the entire service life of the vehicle. However, if the fluid in the reservoir is heavily contaminated or darkened, it should be replaced.
HELPFUL TIP: If the fluid is very dirty or dark, check the power steering pump and steering gear for proper operation. They may need to be repaired or replaced.
NOTE: Do not reuse drained fluid: it is contaminated, saturated with air and moisture. Always refill the system with the same brand of fluid that was previously filled.
1. Raise the front of the vehicle and place it on secure supports so that the front wheels do not touch the ground. If you have a lift, you can raise the entire vehicle.
2. Pump out (for example, with a syringe or a rubber bulb) fluid from the power steering reservoir.
3. Tighten the clamp securing the fluid supply hose to the tank...
4. ...slide it along the hose and disconnect the hose from the tank fitting.
5. Place the end of the disconnected hose in a previously prepared container. If the hose is not long enough, extend it with a piece of any hose of a suitable diameter.
6. Drain the fluid from the power steering system by starting the engine two or three times for a few seconds while turning the steering wheel alternately in both directions until it stops.
7. Connect the fluid return hose to the power steering reservoir.
8. Fill the reservoir with fluid and bleed the air from the power steering system (see "Bleeding the power steering system"). Do not pour liquid above the "MAX" mark.
9. Replace the plug and wipe away any drips.
The material was created based on information from the website chevyman.ru