RX - 1st Gen (1999-2003) Discussion topics related to the 1999 -2003 RX300 models

rear wiper washer

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Old 10-11-07 | 08:11 AM
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Default rear wiper washer

Hello out their in the lexus world, My rear washer,(wiper works)pump is not working. Does anyone know if this is a seperate resivoir for the fluid? Although I don`t hear any thing(like pump groaning) or anything.Is it poss. the pump burned out? Where is it located? By the way,my front washer work`s fine. Thanx, Ryan
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Old 10-11-07 | 09:20 AM
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Same reservoir and same pump.

The tube is longer and there is a possibility of spray hole to be clogged. A sharp pin can clean it out, but can make the nozzle susceptible to further corrosion.

I recommends that the rear washer is used once a month and reservoir flushed out once a year. [Pump put the old and replenish or every 3rd yr take the reservoir our and wash it]

Also use quality fluid.

Salim
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Old 10-11-07 | 10:03 AM
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Salim, are you sure it's the same pump? You can spray the front or rear separately which would tell me that you most likely have two separate pumps or switching valve?
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Old 10-11-07 | 10:03 AM
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Originally Posted by salimshah
every 3rd yr take the reservoir out and wash it
Salim
That's an interesting recommendation I haven't heard before. How about somebody doing a photo shoot of how to take it out and reinstall?
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Old 10-11-07 | 12:01 PM
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Well truely,the only reason I`m concerned about this, is because of winter comming.(salt splashing up on the rear window)and diffacult to keep clean without washer fluid.
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Old 10-11-07 | 12:13 PM
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I could take some pictures of my reservoir when I get home (I don't remember junking it) as I took it out to give the tranny cooler some more flow. There are just a few wires you have to take off to remove it.
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Old 10-11-07 | 07:16 PM
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Now, I took some pictures of my recently removed fluid reservoir tonight so I will show them now

Last edited by Lexmex; 10-11-07 at 07:21 PM.
Old 10-11-07 | 07:19 PM
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A top shot.

Altogether, I counted 3 bolts holding it into place, 2 electrical connector plugs and 2 outlets for the rubber hoses to each wiper.
Attached Thumbnails rear wiper washer-img_3067.jpg  
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Old 10-11-07 | 07:20 PM
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A side shot, notice on the left side where there is an electrical plug and also the area for the two small rubber hoses
Attached Thumbnails rear wiper washer-img_3070.jpg  
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Old 10-11-07 | 07:22 PM
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A closer look from the back.
Attached Thumbnails rear wiper washer-img_3072.jpg  
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Old 10-11-07 | 07:23 PM
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Below, you can see another connector on the other side.
Attached Thumbnails rear wiper washer-img_3074.jpg  
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Old 10-11-07 | 07:24 PM
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Finally, the other side.
Attached Thumbnails rear wiper washer-img_3069.jpg  
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Old 10-11-07 | 07:25 PM
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A shot into the interior
Attached Thumbnails rear wiper washer-img_3073.jpg  
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Old 10-11-07 | 07:28 PM
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And of course the reservoir itself is (or was in my case) located in this vicinity on the passenger side front corner behind the bunmper and in front of the passenger side wheel, requiring removal of the front part of the plastic covering of the wheel well. And I have tied up the old wires with plastic ties.
Attached Thumbnails rear wiper washer-img_2289.jpg  
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Old 10-11-07 | 09:17 PM
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Originally Posted by alsalih
Salim, are you sure it's the same pump? You can spray the front or rear separately which would tell me that you most likely have two separate pumps or switching valve?
That is my best recollection. 1 reservoir, 1 pump 2 valves (to direct flow) People with workshop manual or who have worked on the pump can confirm or correct me.

Salim
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