Need support. Just found out my radiator is leaking

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Rocket Man

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The new replacement OEM GMT 800 radiators don’t have petcocks either, they eliminated them also. I replaced the one in my 02 Yukon Denali a couple years ago and it came without one. My old one had it.
 
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iboughtatahoe23

iboughtatahoe23

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My stock 07 Denali does NOT have a petcock.
I pull my lower radiator hose off to drain it.
Your results may vary?
Youd think seven years later they would implement something like that.... than again half a million in savings haha across all gmt 900 made
 

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The new replacement OEM GMT 800 radiators don’t have petcocks either, they eliminated them also. I replaced the one in my 02 Yukon Denali a couple years ago and it came without one. My old one had it.

I never mess with the petcocks even if they're there. I just pull the lower radiator hose.
 

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Try and get it into a bucket or pan so it can be disposed of properly. Methods may depend on the type of coolant. Search for recommendations in your area. https://www.autozone.com/diy/antifreeze-coolant/what-to-know-about-disposing-antifreeze

Ethylene Glycol is poisonous so anything splashed on the ground should be absorbed or diluted enough to not harm animals that might be inclined to lap it up. Had a friend's dogs get into some antifreeze in his garage and both dogs died from drinking it.
 

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