Water pump replacement

Tiny
ROSS DOUGAN GRANT
  • MEMBER
  • 2004 BUICK LESABRE
  • 3.8L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Replaced thermostat but when shut off, leaks from water pump.
Friday, June 29th, 2018 AT 1:46 AM

2 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello I am Danny.

Water pumps are made with a drain hole in the bottom. Once the pump begins to show excessive wear coolant will leak through the inner seal and begin leaking through that drain hole. It is pretty common in high-mileage vehicles. I have attached step-by-step instructions for you if you choose to do the repair yourself. Be sure that after removing the old pump that all surfaces are clean to promote a good seal for the gaskets and installation of the new pump. The long bolts are to be torqued to 22 FT LBS and the short bolts to 11 FT LBS. Hope this helps! Let me know if you have an questions!
Danny
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Friday, June 29th, 2018 AT 4:41 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
This guide will give you a step by step while you use the diagram Danny gave you.

https://www.2carpros.com/articles/water-pump-replacement

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken

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Friday, June 29th, 2018 AT 10:56 AM

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