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SC430 - 2nd Gen (2001-2010)

Power steering stiff

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Old Mar 25, 2019 | 06:48 PM
  #16  
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See this line? Use your hand to follow it down to the power steering pump. Once you see the pump, you will see the little cylinder with the two ears. The lines connected to those ears are your vacuum lines. Use your hand to follow them up.



No matter what, you should replace them. If you order them before you take a look at your engine, you can use their preformed shape to figure out where they go.

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Old Mar 25, 2019 | 07:19 PM
  #17  
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Thanks Darryl
so I need to remove my air box and intake pipe to get to really see where these lines go

am I correct?
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Old Mar 26, 2019 | 11:08 AM
  #18  
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Originally Posted by LEXZILLA
Thanks Darryl
so I need to remove my air box and intake pipe to get to really see where these lines go

am I correct?
It has been awhile since I did it, but I believe you are correct about the airbox, I remember when I did it, I could see the parts from the top pretty easy. I know I replaced the hoses from the top.

Watch this video from Scotty Kilmer that will show you how to replace the valve. He will tell you what symptoms you will have if your valve is bad and how to do it if you need to
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Old Mar 26, 2019 | 12:51 PM
  #19  
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The yellow box is the vacuum lines.
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Old Apr 10, 2019 | 03:40 PM
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Thanks to everyone who responded...
i started to do it myself but ...
i have a mechanic that's going to change it for me
one last question...
does this power steering air control valve stick out of passenger side of the power steering pump or
out the bottom of the pump

thanks in advance
Lex
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Old Apr 10, 2019 | 05:32 PM
  #21  
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Just go back and look at posts 3, 13-15.
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Old Apr 10, 2019 | 05:36 PM
  #22  
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Or just open the hood and follow the vacuum lines to the ACV...you just answered your question.
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Old Apr 10, 2019 | 05:56 PM
  #23  
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This video is for an LS400 but it’s very close to SC430 power steering ACV.
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Old Apr 11, 2019 | 03:10 AM
  #24  
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Originally Posted by LEXZILLA
ive been looking for my power steering vacuum lines but I can't seem to find them
does anyone have pictures of where they are located?

thanks in advance
why do you think it is the ACV, Vacuum?
is the problem all the time?
10mph and 70mph?

its easy to find out if the ACV is good or bad.
just disconnect the vacuum from the ACV and if the steering is harder, the ACV is good.
now reconnect and the steering should be easy again.
if not, replace the ACV.

you could have a bad pump or rack.
perhaps, really dirty fluid.
the alignment could be off.

it sounds like you are throwing money at the problem and hoping for a fix.

BTW, coming back here once a week is not the best way to obtain good help.

Last edited by Bgw70; Apr 11, 2019 at 06:39 AM.
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Old Apr 11, 2019 | 03:19 AM
  #25  
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One last thing, the PS is much easier on my 2007 vs my 2002...I have never figured out why.
high speed or low speed, it doesn’t matter, the 2002 steering requires more effort.
the tires might have something to do with it.
the 2002 has the Pilot Sport A/S 3s
the 2007 has the OEM RFs...harder tire.

Last edited by Bgw70; Apr 11, 2019 at 06:54 AM.
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Old Apr 12, 2019 | 06:27 AM
  #26  
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I'm just asking for advice before I throw money at a bigger problem steering is stiff with vacuum lines on or off

again

thanks in advance
lez
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Old Apr 12, 2019 | 09:36 AM
  #27  
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Originally Posted by LEXZILLA
I'm just asking for advice before I throw money at a bigger problem steering is stiff with vacuum lines on or off

again

thanks in advance
lez
good, then the ACV may correct the problem...but it could still be the pump, I also know if the electrical connector is removed you won’t have much power steering.
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Old Apr 15, 2019 | 08:43 AM
  #28  
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Changed that valve steering got a little better tackling the pump next

thanks for your help

Lex
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Old Apr 15, 2019 | 10:11 AM
  #29  
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Originally Posted by LEXZILLA
ive been looking for my power steering vacuum lines but I can't seem to find them
does anyone have pictures of where they are located?

thanks in advance
Try using Seafoam Hydra Trans Tune, before taking everything apart. I had the same issue on our 07 CRV and fixed it by using trans tune, working fine ever since.
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Old Apr 15, 2019 | 01:34 PM
  #30  
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Originally Posted by LEXZILLA
Changed that valve steering got a little better tackling the pump next

thanks for your help

Lex
Hey Lex,

Do you have a Check engine Light on? Did u have your car scanned for codes?

The power steering pump isn't too hard to replace, but it can be pricey. It would be good to know if that is what you need, or if you can get by with fixing a cheaper part.
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