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Old 07-04-2016, 02:43 AM   #1
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Replaced My 8.1 Vortec Water Pump Problems and Solutions

I learned a lot while changing out my water pump myself I thought I would share this journey.
Total cost $150.00
Used AC Delco 252-783
Took both old and new pumps apart to compare quality


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Old 07-04-2016, 07:51 AM   #2
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Nice video Kevin...
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Old 07-04-2016, 10:11 AM   #3
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Great video! The best I've seen, thank you for taking the time to record it.

Duane
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Old 07-04-2016, 12:11 PM   #4
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Thank you for watching.
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Old 07-05-2016, 07:09 AM   #5
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Great video.

Were the new water pump gaskets the silicone o-ring type or the older flat paper style?

Did you drain the coolant through the bottom hose or just let it drain from pump removal?

Did the pump come out the bottom or from the top? (Thinking it has to come out the bottom.)
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Old 07-05-2016, 10:41 AM   #6
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Yes silicone o-ring type just like the factory ones i removed
Bottom hose .. A petcock would have been nice..
Yes removed from the bottom
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Old 07-05-2016, 02:17 PM   #7
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I appreciate you sharing your knowledge - great video.
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Old 07-05-2016, 03:44 PM   #8
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Thanks for commenting, and watching.
I may have anther video soon.
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Old 07-05-2016, 05:59 PM   #9
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Keep up the good work. We need more videos like this to encourage people to work on there own Workhorse. Its really not that hard.
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Old 07-05-2016, 06:21 PM   #10
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Old 07-05-2016, 08:52 PM   #11
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Great video What was the wp small hose part # thanks
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Old 07-05-2016, 11:43 PM   #12
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Thanks for the great video and the part numbers.

Dave
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Old 07-06-2016, 05:00 AM   #13
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Do you recall if the holes where the pump bolted on were blind holes? Was thinking about that last night and wondering if they weren't how do they seal the bolts. Thinking they were but wasn't sure.

Thanks for all the information, you are definitely blazing trails here for the rest of us. I crawled under last night and used a flashlight, everything looks OK for now but think I may do this prior to our big trips we have planned from east to west coast. It would probably be smart preventative maintenance.
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Old 07-06-2016, 05:18 AM   #14
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Hose part number:
ACDelco 12558968 GM Original Equipment Thermal Bypass Hose Assembly


Yes I be-leave all 4 mounting bolts had blind holes.
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