Water pump Needs to be replaced help!! - Page 2 - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 11-16-2012, 07:30 AM   eBay Motors  #11 (permalink)
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Where did you read about head gaskets blowing after a water pump replacement?
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Old 11-16-2012, 07:34 AM   eBay Motors  #12 (permalink)
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There are multiple threads on here guy replaces water pump head gaskets blow.... Not saying it is all the time but it has happened.


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Old 11-16-2012, 07:58 AM   eBay Motors  #13 (permalink)
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How To: Replace Water Pump in 1hr:)

Took me a lil over an hour, get the lisle tool, saves unnecessary work, and with a real long extension and swivel you can get to the water tube on the back of the pump and you don't have to remove the t-stat housing, you can slide it in.

OP where do you live? Also the dealer quoting about a grand is right, it calls for like 8 hours in the book.
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Old 11-16-2012, 08:44 AM   eBay Motors  #14 (permalink)
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Quote:
Originally Posted by e46_330i View Post
You got a deal. An OEM pump is going to run you $170-200 and the shaft should be welded. I got mine for Merchant with the shaft welded for like $170 I think.


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Old 11-17-2012, 08:57 AM   eBay Motors  #15 (permalink)
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Quote:
Originally Posted by ThuddylikesSmoke View Post
There are multiple threads on here guy replaces water pump head gaskets blow.... Not saying it is all the time but it has happened.


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What would cause this? Improved water flow or pressure?
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Old 11-17-2012, 11:06 AM   eBay Motors  #16 (permalink)
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Quote:
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What would cause this? Improved water flow or pressure?
I think it's a coincidence. Or they were blown before the pump was replaced and the leak in the system didn't show any symptoms.


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Old 11-17-2012, 11:26 AM   eBay Motors  #17 (permalink)
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Parts wear out! Head gaskets blow and the water pump wears out on all vehicles. No connection.
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Old 11-17-2012, 12:54 PM   eBay Motors  #18 (permalink)
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I didn't know mine were blown intil I changed my waterpump. Coincidence maybe???
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Old 11-18-2012, 06:09 AM   eBay Motors  #19 (permalink)
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I expect the water pump fails sometimes due to the build up of pressure instead of coming out of the rad. reservoir. It finds the weakest point and thats why it leaks out of the water pump is my guess to all this. I just hope I don't find that the headgaskets are blown. Is there a test I could do?
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Old 11-18-2012, 06:48 AM   eBay Motors  #20 (permalink)
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^^^ that is kind of the general reasoning it seemed in the threads I read. When my head gaskets were out the top radiator hose was hard after sitting all night and you couldn't remove the reservoir cap without it blowing coolant everywhere.


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07.5 LMM RCLB DSP5 by Idaho Rob, 4inch Straight pipe, Edge Insight CS.... More to come

Sold
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