Question about 1990 Chevrolet C1500

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A miss fire problem where it appears that the left bank of plugs are not firing all the time.

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  • c_schadewald Feb 03, 2009

    The wires cap rotor and plugs are all new this past summer. I just replaced the plugs again thats when I noticed the plugs on the left bank look as if they had been firing.

  • c_schadewald Feb 03, 2009

    Thanks for the help.

  • James Tepfenhart
    James Tepfenhart May 11, 2010

    so the next thing to do is get it on a diagnostic machine some how. They do it for free at the auto part stores, also AAMCO does it for free also.

    tepfy


  • James Tepfenhart
    James Tepfenhart May 11, 2010

    its either the the timing, coil, distributor & rotor; depending on the year, wires, or plugs. I would recamend doing a major tune up. But before you go spending a lot of money, go to the part store. Let them use there diagnostic computer which they do for free. Find out what it is telling you. Let me know once you have more data.

    tepfy


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Change disturbutor cap and roter

Posted on Feb 03, 2009

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3.1L (VIN M) engine Firing order: 1-2-3-4-5-6 Distributorless Ignition System



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3.8L (VIN K) engine Firing order: 1-6-5-4-3-2 Distributorless Ignition System


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