Change the Power Steering Fluid in a Second Generation Lexus GS (1999-2000 Lexus GS 400, 2001-2005 Lexus GS430, 1998-2005 Lexus GS300)

Works For:
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Lexus GS Models
Lexus GS Models include: GS 300, GS 400, GS 430

Flush Process

Source: PingPong909

Refill Process

Source: ClubLexus

Here’s what I used..a quart of Toyota Dextron and a new hobby fuel bottle.
You can get a the fuel bottle from your local hobby shop or order one for about $5-$7. here’s one ….. http://www2.towerhobbies.com/cgi-bin…?&I=LXD531&P=7 Otherwise, I’m sure you can find something at parts store to do the same thing.

Remove the cap from power steering reservoir. Make sure the spout is clean and squeeze the fuel bottle.

Gently insert spout into reservoir and release pressure on bottle so it sucks out the old fluid.

I got this on first pull…

This is how much that came out second time after I emptied the bottle and repeated.

Here’s the reservoir empty.

Now refill to a few mm below the hot line with fresh Dextron and you’re done.

Repeat this process as many times as you want after a day or so of driving for the fluid to mix with remaining fluid. I know it’s not as good as a total flush, but it will eventually get the fluid nice in there. I did this about 5 times this week(this was the last) and the fluid looked better every time and now it stays red. My car has 37k miles and this was the first time that fluid was touched.