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No Power when Floored

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by 82Jimmy, May 7, 2001.

  1. 82Jimmy

    82Jimmy 1/2 ton status

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    I floor it while on highway and get NO POWER, i don't know whats wrong it makes a louder sound like rpms gaining but it just sits there and goes maybe 5mile per hour per 15seconds faster....350 650CFM Carb


    ..........and one time at band camp.........
     
  2. 2Dogs

    2Dogs 1/2 ton status Premium Member

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    Hey,
    Check the obvious? Fuel filter, Cat, timing, etc....
    Mine is TBI/Electric pump but have experienced those symptoms - once the Cat but usually filter.
    Check for inline filters and filter on carb. Dave
     
  3. 82Jimmy

    82Jimmy 1/2 ton status

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    I checked all that...I still get gas in the crank case twice a week and I adjusted my floats on the carb but still no power...man i hate my Jimmy


    ..........and one time at band camp.........
     
  4. 82Jimmy

    82Jimmy 1/2 ton status

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    Oh yeah my timing is perfect or close to it


    ..........and one time at band camp.........
     
  5. muddin4fun

    muddin4fun 3/4 ton status

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    Fuel in the crankcase is a sign of a bad or defective fuel pump. Check your choke too.

    [​IMG]
    <A target="_blank" HREF=http://k5chevyblazer.homestead.com/home.html>http://k5chevyblazer.homestead.com/home.html</A>
     
  6. 2Dogs

    2Dogs 1/2 ton status Premium Member

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    Gas in crankcase usually is caused by a hole in the diaphram of the fuel pump - if you have the original
    mechanical type it is cheap enough to replace. Might cure both probs.
    For fixing and troubleshooting, your jimmy is probably one of the easiest and cheapest vehicles you will
    ever own. Everytime I look cross-eyed at the vette, it's a $1000..... Cant TS it myself and very expensive.
    dave
     
  7. 2Dogs

    2Dogs 1/2 ton status Premium Member

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    For electric fuel pump - check the seats on carb. Or better - read the fuel pump isolation thread that is going on now.....
     
  8. 89Blazin

    89Blazin 1/2 ton status

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    If the RPMs are climbing, and the truck isn't....tranny.

    85 Burb and an 89 Blazer
    One just for fun, one simply for pleazer
     
  9. 89Blazin

    89Blazin 1/2 ton status

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    If the RPMs are climbing and the truck isn't....tranny.

    85 Burb and an 89 Blazer
    One just for fun, one simply for pleazer
     

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