Need some help diagnosing coolant leak in my 5.3L Sierra - LS1TECH



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Need some help diagnosing coolant leak in my 5.3L Sierra

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Old 03-12-2017, 05:36 PM   #1
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Default Need some help diagnosing coolant leak in my 5.3L Sierra

Found some coolant laying in the driveway this afternoon after getting it washed. Seems to be dripping down from the drivers side wheel well. The mud flaps behind the front wheels had frozen coolant isicles hanging down too.

I couldn't pinpoint the leak. Just found it strange where it was leaking though. It seems to be on the side of the block or possibly in the back of it. It's not overheating and the resivoir seems to be pretty full. I figured if it was the water pump it would be leaking towards the front of the motor. It's a 2010 5.3 Sierra with 53k miles. Looking for some help or input that could lead me in the right direction. Thanks.
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Old 03-13-2017, 09:49 PM   #2
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Originally Posted by Camaro_94 View Post
The mud flaps behind the front wheels had frozen coolant isicles hanging down too.
What makes you think it's coolant? Coolant shouldn't freeze in to icicles.

Could it be plutonium?

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