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1999 Tahoe GM Fuel Injection Upgrade

This is a discussion on 1999 Tahoe GM Fuel Injection Upgrade within the Port Injection (96+ / OBD-II) forums, part of the Performance category; I was just wondering if this upgrade is worth doing. My tahoe only has 73,000 miles on it and seems ...

  1. #1
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    1999 Tahoe GM Fuel Injection Upgrade


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    I was just wondering if this upgrade is worth doing. My tahoe only has 73,000 miles on it and seems to run perfect. Will there be any significant gain of I do this upgrade.

  2. #2
    I am sinner JWolfe75's Avatar
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    Re: 1999 Tahoe GM Fuel Injection Upgrade

    No, they would still be 19# injectors, its to replace the poppet style when they start to have problems.


    If it runs perfect, I wouldn't do it.
    '05 GMC 2500 HD LLY
    '07 TBSS AWD 3SS
    Quote Originally Posted by BHB View Post
    Ummm...By that, I think that would require sticking my own finger into my "Doug".

  3. #3
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    Re: 1999 Tahoe GM Fuel Injection Upgrade

    well i was on the winjammer website and they list them as a recommended upgrade

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    Re: 1999 Tahoe GM Fuel Injection Upgrade

    They will make it run better but only if the ones you already have start failing.
    1999 GMC Suburban 2500 7.4 Liter 4L80E trans and factory 4.10 rear

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    Re: 1999 Tahoe GM Fuel Injection Upgrade

    If you feel it runs "perfect" I wouldn't bother. Very little difference when I did mine. A far more important upgrade is the intake manifold gasket. Do you know if yours has been done? Do you use any coolant?

 

 

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