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Help Identifying A Leak

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Old Mar 12, 2024 | 4:28 PM
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Default Help Identifying A Leak

Hello, I'm having trouble identifying a leak with the coolant. I'm trying to get this 2001 Suburban 1500 LS Model working in good condition, but I'm stuck on where this leak is. I'll have 2 links each with a video showing where the leaks are, would be greatly appreciated if I got some help.

Thanks.

https://streamable.com/pqztk2
https://streamable.com/u5h47i
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Old Mar 13, 2024 | 2:28 AM
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I can see it running right off your reservoir. It's probably cracked. Pressure test your system to be sure.
It's a huge leak. Should be super easy to find.
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Old Mar 13, 2024 | 5:29 PM
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I can't pressure test it, the moment we fill it up with water it all just dumps out at the location shown in the video, the reservior is all intact though. Is it possible the head gasket it bad and needs replacement?
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Old Mar 13, 2024 | 5:35 PM
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I've never seen a head gasket run like that.
Even if there's no water, a pressure test will still help reveal a leak.
The water is coming out as fast as you pour it in, so it should be really obvious. If it's not the tank then it's a split hose or something.
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Old Mar 13, 2024 | 5:42 PM
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Looks like the reservoir tank must be cracked because there's no connections to the bottom of the tank.
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Old Mar 13, 2024 | 8:01 PM
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Gotta be the reservoir
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Old Mar 13, 2024 | 10:56 PM
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Reservoir isn't leaking from anywhere, unless you guys are talking about something completely different. I'm waiting for my next paycheck, and I'll purchase a pressure test kit, but what will it show?
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Old Mar 14, 2024 | 12:38 AM
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you don't need to buy one. Part stores often have loaners.
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Old Mar 15, 2024 | 5:35 PM
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Update: I found the leak, it's a rear freeze plug that was completely blown off. Now I just need to figure out how to access it without taking apart the whole engine.

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Old Mar 16, 2024 | 9:30 AM
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Originally Posted by JoeJoeJ
Update: I found the leak, it's a rear freeze plug that was completely blown off. Now I just need to figure out how to access it without taking apart the whole engine.
Well, that's a great "I have good news and bad news - which do you want to know first !!!"
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