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Thread: KR

  1. #1
    Tuner
    Join Date
    Jan 2016
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    East Bend NC
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    KR

    What do I need to look for,my truck is now on stock timing,runs great, but when I give it a quick jab on the throttle is has a severe spark knock,other than that it's fine,maf and vve are good

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
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    13,533
    Is it real knock or burst knock that is spiking?

    Burst knock does tend to do that sort of things in this type of situation.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
    Tuner
    Join Date
    Jan 2016
    Location
    East Bend NC
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    125
    It's real knock,i just went to lunch and at every red light I laid into it pretty hard and no spark knock,its odd for sure