C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Question about LT1 Coolant Flush?

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Old Aug 8, 2017 | 02:02 PM
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Default Question about LT1 Coolant Flush?

Sounds like the best route to clean the cooling system is to remove some kind of plugs on the engine ( to get sludge out ) ? Where are these located, are they used for sensors and can they be reused once removed? Pictures would be nice.

Last edited by Cool Runnings; Aug 8, 2017 at 02:02 PM.
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Old Aug 8, 2017 | 03:27 PM
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That would be the knock sensors. They are cheap so I am going to replace them both when I flush the coolant.



Last edited by JimLentz; Aug 8, 2017 at 03:32 PM. Reason: Add video link.
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Old Aug 8, 2017 | 04:43 PM
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Thanks, just what I was looking for.
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Old Aug 8, 2017 | 08:55 PM
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get one for an Lt4 if you installed roller rockers
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Old Aug 9, 2017 | 08:26 AM
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Originally Posted by BrianCunningham
get one for an Lt4 if you installed roller rockers
I thought the knock module was the lower sensitivity for an LT4, not the knock sensors.
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Old Aug 9, 2017 | 10:19 AM
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Originally Posted by QCVette
I thought the knock module was the lower sensitivity for an LT4, not the knock sensors.
correct

sorry it's been a while
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