Hello everyone i need you guys input on this.I bought my dream car this February 2001 GS 430 126000 miles.when i opened the hood i noticed it was low on ps fuild so i put some in and it was the wrong kind.the next day the car steering got really stiff on me so i did a full flush with mobile one.after that the car ran great i mean awesome i was hoping in and out lanes fast and quick on the freeway.Couple days later it got stiff on me again.it feels heavy and i cant lane change like i wanna it feel as if i have no control over the car the feeling of the car is so heavy now.Nothing is leaking steering wheel self center like it supposed to. I cleaned the power steering reservoir still the same. I really need you guys help on this one I've been reading every post and im scared to change the rack and it drives the same but i think that i might do that first can the rack cause the steering to become stiff one more thing when i start the car up in the morning it works about 75% like it should then 15 minutes its back to stiff please i need your input

 

Wat is Mobile one?

 

Its synthetic ATF

 

Mobil 1 what? The power steering fluid needs to be DEXRON II or III, as specified in the owner's manual.

 

If u look on the reservoir it says fill up with Dexon ll or lll or automatic transmission fluid

 

DEXRON II and III are specifications of ATF, there is no "or ATF" it has to be ATF that meets either specification.

 

i just took a look at it again and it say fill with atf type Dextron so u may be right i git the idea from members on here to fill it with mobile one

 

Not sure about Mobil one, in addition Synthetic.. Why not just OEM fluid? How did you flush it out.. If Fluids are not Compatible, you are screwed.. Usually as a rule of thumb when going to other type of viscosity, the system must be FULLY flushed..Did you use a Machine to flush it out and install the new Synthetic ATF? IDK but sound like your problem maybe Air or Fluid Reaction to the old

 

BTW SYNTHETIC fluid will KILL any rubber /component Seals if its not used from the beginning..

 

First i took it to pep boys they flushed it with a machine and put what it called for it drove great for about three days then it started getting stiff on me again so i got on CL and most people were saying they flush theres and put in mobile one so i flushed it from the rack.it do feel like air is trapped some where.

 

What should i do

 

Ok so i just did a full flush on the power steering system this time i used four bottles off dex3 just so i could get a good flush.so if this doesnt work then what.

 

Dont know why it would be giving you problems. i fill mine up with Mobile 1 ATF all the time and its great. the bottoms says its for honda/toyota and it meets Dex2/3.

 

i no m1 suppose to work better idk what's going on