LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Vac Line on Power steering pump air valve?

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Old 01-07-10, 12:28 PM
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hp32si
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Default Vac Line on Power steering pump air valve?

-I need a litte help---I didn't mark the lines coming off the valve when I replaced my power steering pump---Can anyone tell me which line goes where on the valve---or does it mater--- One line goes into the plastic intake and the other is located on the front of the metal intake on top of the motor. My old valve completely let go and pumped all the fluid in to the motor--White smoke every where---Very interesting to see--NOT! Have everything ready to go back together but just need this little bit information---On one side of the valve is a flat bump and the other side is rounded--
THanks

Last edited by hp32si; 01-07-10 at 02:58 PM.
Old 01-08-10, 02:15 AM
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vaughn37
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i personally dont think it matters there both vacuum ports
Old 01-08-10, 12:10 PM
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hp32si
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vaughn37- thanks for the response-I thought there would be a pressure differential between the two areas---that is my concern-hooking up the high pressure vacuum to the lower pressure side and blowing out the valve----
Old 01-09-10, 03:42 PM
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vaughn37
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my manual doesn't say.it just points to the valve and calls it a vacuum port.so it must not matter.but of course always use your own judgment..
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