2003 Sonoma SLS 4x2 odd hesitation, Possibly engine knock?

Discussion in 'Chevy S10 Forum (GMC Sonoma)' started by atirox, Feb 8, 2012.

  1. atirox

    atirox New Member

    I was wondering if i could get a little help with an issue I've noticed on a 2003 GMC Sonoma SLS 4x2 with the 4.3L V6.
    Basically, its a slight hesitation that occurs while driving at any speed (only noticed it at 55+ MPH), and it seems to happen one out of ten times when the vehicle is nice and warm. Odd thing is, even when you notice it, its not a constant hesitation that continues to happen when you get that one time it decides to show its self. Also, when it hesitates there is kind of like a metalic squeak, kind of like metal rubbing on metal. Almost reminds me of the knock my 1999 GMC Suburban has... This started happening about 3000 miles since I did plugs and wires. Prior to that it was great.

    Could this be engine knock that is being caused by the new plugs?

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