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Discuss New injector in the alt.autos.gm forum at Car Dealer Forums; My 98 Century was running rough. Engine service soon light came on and flashes. Mechaninc ...
  1. #1
    KTWelch
    Guest

    Default New injector


    My 98 Century was running rough. Engine service soon light came on and
    flashes. Mechaninc says I need new injector for no 2 cylinder. How much
    should this cost? Is there any other cause for these symtoms? The car has
    the 3.1 with SFI. Thanks for any input.



  2. #2
    Todd A. Delk
    Guest

    Default Re: New injector

    New injector will cost around 60.00 at a dealership not including the labor
    which will run about 170.00. I had the same problem with my 02 Chevy s-10
    4.3 v- 6 vortec.According to what you describe here, that is the same
    symptoms I had. The cause may be a dirty/ clogged injector. Every oil change
    I run 1 bottle of STP fuel injector cleaner and that keeps me from having
    that problem any more.

    --
    Todd A. Delk
    "KTWelch" <kenwelch@wildblue.net> wrote in message
    news:%QrCg.17$oR3.45101@news.sisna.com...
    >
    > My 98 Century was running rough. Engine service soon light came on and
    > flashes. Mechaninc says I need new injector for no 2 cylinder. How much
    > should this cost? Is there any other cause for these symtoms? The car
    > has the 3.1 with SFI. Thanks for any input.
    >




  3. #3
    =?x-user-defined?Q?=AB?= Paul =?x-user-defined?Q?=BB?=
    Guest

    Default Re: New injector

    KTWelch wrote:
    >
    > My 98 Century was running rough. Engine service soon light came on and
    > flashes. Mechaninc says I need new injector for no 2 cylinder. How much
    > should this cost? Is there any other cause for these symtoms? The car has
    > the 3.1 with SFI. Thanks for any input.


    Injectors very rarely go bad. How does your mech know its a bad injector?
    Did he swap them around, pressure test, pattern test, etc???
    It could be just as easily a bad plug wire.

  4. #4
    steve_f
    Guest

    Default Re: New injector


    wrote:
    > KTWelch wrote:
    > >
    > > My 98 Century was running rough. Engine service soon light came on and
    > > flashes. Mechaninc says I need new injector for no 2 cylinder. How much
    > > should this cost? Is there any other cause for these symtoms? The carhas
    > > the 3.1 with SFI. Thanks for any input.

    >
    > Injectors very rarely go bad. How does your mech know its a bad injector?
    > Did he swap them around, pressure test, pattern test, etc???
    > It could be just as easily a bad plug wire.



    injectors on the 2.8 , 3.1, and 3100 commonly go bad .....not because
    of contaminates clogging the injector but because the coatings on the
    copper winding inside the injector wear dropping the resistence of the
    injector . a good injector checked with a ohmmeter should be around
    12.7 ohms .....a measure of electrical resistence.... anything lower
    than around 12.2 is usually on its way to being bad...anything 11 ohms
    or lower will cause a problem


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