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1992 Lexus ES 300 leaks power steering fluid heats up when

Tiny
KINGJAMES31
  • MEMBER
  • 1992 LEXUS ES 300
Steering problem
1992 Lexus ES 300 6 cyl Front Wheel Drive Automatic

the car leaks powersteering fluid heats up when driving in the city. It also I took a look under the hood when car was idlin andhere is a lot of air in te power steering resevoir and makes a weird whinning noise when the car heats up and is idling
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Monday, June 22nd, 2009 AT 7:42 AM

5 Replies

Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
Having bubbles in the fluid is common when you have a leak. The whine noise is because of the air bubbles.

But I couldn't understand what you are talking about it heating up when you are driving.
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Monday, June 22nd, 2009 AT 9:58 AM
Tiny
KINGJAMES31
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  • 2 POSTS
While I am driving the temperature gauge goes up pretty quick oly in the city my friiend says that is driven by the power steering systemfan
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Monday, June 22nd, 2009 AT 10:46 AM
Tiny
BUDDYCRAIGG
  • MECHANIC
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Is this the gauge for the engine temperature? It has nothing to do with the power steering.

And is it getting higher than the normal operating range?
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Monday, June 22nd, 2009 AT 4:08 PM
Tiny
NETSURFYR
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  • 1 POST
Actually, on the 92 ES300 the fan motor is hydraulic. It runs off the powersteering pump. If there is not enough fluid/ pressure running to the fan motor your negine will overheat.

My kid's 92 ES300's PS pump bearing seized and he's been driving it with Arms Strong steering. But it overheats cause no ps fluid is turning the fan motor. I'm working on it tomorrow.

You need to figure out why air is getting into the system. The whining sound could be is like air being sucked through a tiny hole. Is fluid being forced back up and leaking through the fill capà ‰

PS. Why on earth would toyota use a hydraulic fan instead of an electric one.`Go figure.

Hope this helps.
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Monday, July 27th, 2009 AT 11:35 PM
Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
Man, you are so right.

After you said that, I remembered working on a Toyota Camry and thinking, "Who the hell had this great idea?"

I probably wanted to block it out of my memories.

I have sent the OP an email about the new post to this thread to make sure he/she reads the new and correct info.
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Tuesday, July 28th, 2009 AT 1:00 AM

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