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no power need help?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by wheelin247, Jan 21, 2001.

  1. wheelin247

    wheelin247 1/2 ton status

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    i have a blazer and when i go to press the gas ot has no power at all and somtimes it back fires ,its like it has no power and all and its sounds like a damn tractor ...haha....well if anybody can help me out it is well apriaciated..............thanks
     
  2. Blazer79

    Blazer79 1/2 ton status

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    A little more info would be better. Did this just suddenly start? Is it a q-jet? I'll give it a shot anyway.

    Have you tried doing a complete tune-up? Spark plugs, spark plug wires, dist cap & rotor. I also recommend you check your fuel filter and timing with a timing light.

    If this doesn't help, maybe your carb needs tuning. Could be the secondaries are opening too fast, causing the famous "quadrabog".

    Hope this helps.

    <font color=blue>//////
    <A target="_blank" HREF=http://blazer79.coloradok5.com>http://blazer79.coloradok5.com</A>
    </font color=blue>[​IMG]
     
  3. Blazer1970

    Blazer1970 1/2 ton status

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    If it happened all of a sudden, it sounds like it jumped time.

    Tim

    70 Blazer CST 4X4 350 SM465 NP205
    87 Burb 4X4 350
    01 GMC 2500HD 4X4 Duramax/Allison
     
  4. riz

    riz 3/4 ton status

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    <font color=purple> I'd agree with the jumped timing. It sounds just like it, especially if it just started to happen as of late.</font color=purple>

    <font color=purple>L8r,

    .Riz.<font color=purple>

    [​IMG]
     
  5. wheelin247

    wheelin247 1/2 ton status

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    ya i put a new fueul filter in the it startin havin the no power but before that it would keep on dying out ?
     
  6. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    you may have clogged needles in the carb

    s.smith 77blazer lookin 4 mud
     

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