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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

Fitting under radiator cap

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Old August 30th, 2018, 11:36 AM
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Default Fitting under radiator cap

Hey all. I installed a new radiator on my 97 Suburban (5.7) a couple years ago. There's a rubber cap and hose clamp blocking off some kind of outlet below the radiator cap and overflow line. Recently, the rubber cap blew off and I lost a bunch of fluid. Does anyone have any idea what the purpose of that "outlet" is?
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Old September 3rd, 2018, 4:19 PM
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Maybe a secondary heating system? Turbo cooler? Rabbit hole?
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Old September 4th, 2018, 10:42 AM
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I've wondered about that. Right now I'm going with rabbit hole!
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