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DIY: 3GS Water Pump Replacement (***with pics***)

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DIY: 3GS Water Pump Replacement (***with pics***)

Old 05-16-17, 04:18 PM
  #31  
b0ssGS350
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Originally Posted by Sgfierros View Post
A huge thanks to the OP and for the great info posted in this thread. Swapped out the wp on my 07 GS450h. A heads up to those looking to do this on theirs, get the right belt as it's different(shorter) than the GS350 and you DO NOT need the idler pulley. The 450h doesn't have it as there is also no alternator. I also had issues with the o-ring on the water inlet housing. The one included with my waterpump was slightly missized and I ended up having to get a universal one to replace. Also for those thinking not to drain their coolant, it can be done but will be unnecessarily messy. If I were to do it again, I would just drain off a good portion of the coolant to simplify things. Hope this helps someone and thanks again guys!

-Steve
Can you list the parts you got and where you ordered from? i have an 07 GS350, I need replace my WP as soon as i order all the needed parts. thanks
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Old 05-18-17, 04:09 AM
  #32  
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Originally Posted by b0ssGS350 View Post
Can you list the parts you got and where you ordered from? i have an 07 GS350, I need replace my WP as soon as i order all the needed parts. thanks
Refer to the beginning of this thread. All the parts are listed there. Mine are different as I have the hybrid model.
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Old 12-03-17, 12:45 PM
  #33  
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Made a video of this procedure. Hope this helps someone!
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Old 02-22-18, 10:30 AM
  #34  
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This thread was a great help, thanks!

Does anyone have the number of just the water inlet gasket that goes on the tube up top near the radiator cap? After two weeks I sprung a leak there and bought a box of random o-rings from the auto store. So far the one I found that fit is working, but for peace of mind I'd like to know the official number in case it leaks again.
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Old 02-22-18, 01:18 PM
  #35  
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Very helpful!
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Old 03-18-18, 04:50 PM
  #36  
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finally did this on my 08 is250. I did the fill and drain method. I tired to do the fill and replace method but when I checked the level, no fluid came out so I had to add more fluid and then drain the excess. I used a scan gauge II tool and did the drain at 102 degrees until the flow was a thin stream and then I replaced the plug.
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Old 04-28-18, 01:27 PM
  #37  
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Great info and very helpful for me

Thanks,

-hb
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