Water Pump Replacement
Thread Starter
Instructor
Joined: Jul 2020
Posts: 175
Likes: 80
Water Pump Replacement
So i've searched the threads and can not find any info on someone having to replace a water pump on a C7 Z06. My story: I have a 17' Z06 with 7500 miles on it and I took the car in for an oil change, brake fluid flush and rear diff service (just because its 3 years old and preventative maintenance is not a bad thing) and the dealer sent me a video of evidence of coolant leaking on the lower hose from the water pump and some weeping around where the water pump mounts to the block. And they say the staining looks as if its been leaking for a while. They are suggesting replacing the water pump (under warranty). I've not seen a single drop on my garage floor, nor have I noticed the expansion tank level lower than normal (even dealer says it appears to be normal level). Even though its under warranty, I just hate to see the front of the motor torn apart for this job (though necessary). Has anyone else heard of this failure at such low mileage? Im told by the service writer its a 6 hour labor job and they need to keep the car overnight today and hopefully done tomorrow. Not gonna lie, i'm a bit nervous that they will mess something up. Anyone with a similar experience feel free to chime in and talk me off the ledge.lol
Team Owner
Joined: Aug 2011
Posts: 21,590
Likes: 1,616
From: GREER SC
Z06
So i've searched the threads and can not find any info on someone having to replace a water pump on a C7 Z06. My story: I have a 17' Z06 with 7500 miles on it and I took the car in for an oil change, brake fluid flush and rear diff service (just because its 3 years old and preventative maintenance is not a bad thing) and the dealer sent me a video of evidence of coolant leaking on the lower hose from the water pump and some weeping around where the water pump mounts to the block. And they say the staining looks as if its been leaking for a while. They are suggesting replacing the water pump (under warranty). I've not seen a single drop on my garage floor, nor have I noticed the expansion tank level lower than normal (even dealer says it appears to be normal level). Even though its under warranty, I just hate to see the front of the motor torn apart for this job (though necessary). Has anyone else heard of this failure at such low mileage? Im told by the service writer its a 6 hour labor job and they need to keep the car overnight today and hopefully done tomorrow. Not gonna lie, i'm a bit nervous that they will mess something up. Anyone with a similar experience feel free to chime in and talk me off the ledge.lol
Drifting
Joined: Sep 2017
Posts: 1,464
Likes: 771
From: Miami
C7 of Year Finalist (performance mods) 2019
This exact scenario happened on another GM vehicle that I seldom drive - 7 years old, ultra low mileage, no fluid on garage floor, etc.
Unfortunately, the water pump was paid for out of pocket.
If you can get this replaced under warranty - that's an easy choice.
Unfortunately, the water pump was paid for out of pocket.
If you can get this replaced under warranty - that's an easy choice.
Team Owner
Joined: Aug 2011
Posts: 21,590
Likes: 1,616
From: GREER SC
It's really the Dexcool that's causing most of the problems. It's just a little caustic and sitting in the engine day after day not being driven can actually cause more problems than one would think.
Safety Car
Joined: Nov 2011
Posts: 3,715
Likes: 343
From: Norman OK
I have owned at least 8 vehicles that use Dexcool, never once had any issues with those vehicles. The problem happens when people mix Dexcool with regular antifreeze.
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Joined: Jul 2006
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From: Mason Ohio
So you will risk overheating and a roadside breakdown that could cause internal engine/head damage (That the dealer also has to fix), versus a really simply repair that prevents that from happening?