Auto Parts and Repairs
Subaru Impreza
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Why is there tapping noise if driven at 1500rpm.Or if stationary revved up too just under 2000rpm letting it drop too 1300rpm and then back to 2000rpm. My 1995 wrx impreza. Been told its not liffters?

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Answer

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Wiki User
01/31/2007

Be sure you are running the right grade of fuel. If your octane is too low; you are asking for tapping. Could be a worn oil pump not getting the oil up top.