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2002 Chevrolet Blazer

Question: valve rattling

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music, Mobile, AL, March 18, 2010, 13:28

 Rookie

lately when i crank up in the morning my valves rattle from from 3 to five minutes then they stop i changed oil with a 10w40 the next day it did the same i changed oil with a 5w30 the next morning it did the same. what can i do to correct this?

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• Answer #1

  Oakman March 18, 2010, 15:04
  

   Master

  You could try adding some engine oil additive designed to clean sticking valve lifters. It may take a bit of time after adding the oil supplement to see if it will take care of the problem. If it does not proper diagnoses of the noise would be critical before attempting any repairs.
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