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How do I pinpoint a power steering fluid leak without replacing everything? fluid leaks out completely if filled up. I am not sure if i am skilled enough to do job myself or if its too dangerous. if anyone has experience with this i would greatly appreciate it. Ive been underneath and i think its the idle control valve on pump. It was loose a tad bit but not sure if its supposed to be like that or not.

The vehicle is a 1994 lexus ls400.

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  • Take your car to an independent mechanic. Sep 4, 2015 at 12:47

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There are fluorescent dyes that you can add to oil to detect leaks. Here is an example - You can add it to the PS fluid reservoir, run the car a while, and then use a UV light around the engine bay to hopefully find the leak. I am surprised that a high leak rate such as this is not showing evidence on the ground.

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  • If the OP's driveway looks like mine, there's so much evidence that you can't tell which evidence is which.
    – barbecue
    Sep 5, 2015 at 2:15
  • Ha :). However, I imagine that a clean flattened cardboard box or newspaper can serve to show the location of any fresh leaks.
    – Ali B
    Sep 5, 2015 at 13:54

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