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1990 Chevrolet 3500 Pickup

Question: engine knock

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kevinf34, 5.7L V8, Orangevale, CA, March 15, 2010, 15:20

 Rookie

I have a 454 1983 itaska that overheated. it still runs strong and dose not knock in neutral. what can I do?

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• Answer #1

  Valleyautotech March 15, 2010, 21:39
  

   Master

  maybe try a thicker oil with some STP oil treatment
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