My mechanic told me every 2-3 years, depending on how dirty the fluid looks.
You need to flush the power steering fluid on a 2003 Toyota Highlander every two to three years. You should check the fluid levels weekly.
Read the owners manual. It has that information.
It is not necessary to flush the power steering system in a car. However, you should check the power steering fluid level in the car each month.
Every two years under normal driving circumstances. If fluid is dirty and low, go ahead have it done.
The do it yourself method of removing old power steering fluid and refilling is gradual. With the vehicle off use a turkey baster to siphon off old fluid from the reservoir. Refill it and a few days later repeat the process. This will by successive dilution charge the system with fresh fluid. There are also professional services which use a machine or disconnecting lines to flush out fluid.
Does the 2007 Hyundai Elantra have a power steering pump? How do I check the fluid level? How often should it be replaced? Thanks.
A power steering fluid leak is most often repaired by replacing the damaged seals or hoses. These trouble spots allow fluid to freely leak from the system.
Not required
If your power steering pump makes a whining noise as you turn your steering wheel your power steering fluid reservoir is probably empty. The noise is caused when your power steering pump tries to pump fluid that is not there. This indicates that you probably have a leak somewhere in your power steering fluid lines. You can either try to find the leak or simply replace the power steering fluid every so often.
I have often used trans fluid as a cheaper than PS fluid substitute with out any problems.
100K miles transmission oil flush & change.
every 30k miles