CODE SAYS IT'S A KNOCK SENSOR

  • Tiny
  • bbbbbbaa
  • 2004 GMC Sierra
  • 127,000 miles

I recharged the k&n filter on my 2004 gmc sierra and the check engine light came on. The code says it's a knock sensor. Is there an easy solution?

Tuesday, September 4th, 2012 AT 9:36 PM

1 Answer

  • Tiny
  • hmac300
  • Expert
  • 42,145 posts

Try cleaning the maf sensor because you probably put to much oil on the filter. Have teh code cleared and seeif that takes care of it

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Wednesday, September 5th, 2012 AT 12:38 AM

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