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Why does my northstar engine overheat?

Updated: 10/27/2022
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13y ago

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If your coolant is leaking, chances you have the head bolts pulling, a common problem on northstar engines. Dealer head bolt inserts don't work, they will tell you that, and no guarantee. The only 100% success rate fix would be " NS300L ". These are longer head bolts and inserts. You can find them on the web, and on Ebay.

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13y ago
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Q: Why does my northstar engine overheat?
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