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Engine Chatter

Discussion in 'Chevy Trucks' started by KCB, Feb 17, 2009.

  1. KCB

    KCB Senior Member
    Messages: 153

    Having some issues with the engine in my 02 Sonoma V6 4.3.

    The check engine light is on and upon start up there is some chattering going on. After about ten minutes of driving it gos away. Any thoughts on what it could be?
  2. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    First things first, go have the code scanned and see what it tells ya. Or if you have a good friend or mechanic with a good scanner, hook it up and have them watch the sensors, etc. That will help you determine it much faster than a bunch of hypothesis. If you get the code, post it here and some of the GM gurus (B&B) can assist you that much better
  3. Milwaukee

    Milwaukee 2000 Club Member
    Messages: 2,180

    What noise it is?

    tick? piston slap?

    Before you start anything. It have oil, what last time change oil, what oil filter brand you use, and who change oil this truck?

    My teacher have same problem and it was cause by fram oil filter. He have gm s10 with 4.3L