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fuel help! stubling under load untill I shift, CCC carb ?'s

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by supersize75k5, Apr 29, 2004.

  1. supersize75k5

    supersize75k5 OrganDonorRacing.com

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    fuel help! stubling under load untill I shift, CCC carb ?\'s

    The 86 blazer seems to have a lack of fuel..

    While driving, truck is a dog, then under acceleration she will not get any gas. However when I shift and get a lower rpm she wont jolt.

    The jolting seems like it is not getting a constant gas flow.



    sould this in any way be spark plug wires?

    Can I put a non ccc carb on or will the computer crap interfer and not alow th truck to run?

    Also the truck sat for 5 years off and on so I imagin the seals in the carb are crap, but I dont want to rebuild it /forums/images/graemlins/doah.gif

    please help /forums/images/graemlins/frown.gif

    -Shawn
     
  2. Muddytazz

    Muddytazz 1 ton status

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    fuel pump?
     
  3. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    Yes, put good quadrajet and regular hei on there and with stock air cleaner and no one would know. It does sound like fuel pump also , but ignition could also be culprit. If this is gonna be your driver, and you just bought it, just plan on replacing the ignition and fuel pump anyway for peace of mind. Use quality lifetime stuff and forget about it for 12 months, then tuneup again. /forums/images/graemlins/thumb.gif
     
  4. supersize75k5

    supersize75k5 OrganDonorRacing.com

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    I thought when a fuel pump went ..they went, can the go out slowly? /forums/images/graemlins/confused.gif
     
  5. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    You can't just change the carb....you will need a vaccuum controled HEI dist. I would definantly consider this swap if you don't have to worry about emmissions. Remember though that if you do the swap you will need to get your lock up wired manually.
     
  6. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    [ QUOTE ]
    I would definantly consider this swap if you don't have to worry about emmissions.

    [/ QUOTE ]

    I live right by him and ran emmissions without my esc distributor and with a Stage 1 q-jet . They just look for smog pump, egr, and vapor cannistor here. I don't think theyd know the difference here. /forums/images/graemlins/k5.gif
     
  7. Hossbaby50

    Hossbaby50 3/4 ton status

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    Fuel pumps can go slowly. I have had it happen.

    did you do a full tune up on it yet? Change the oil, plugs, wires, cap, rotor, set timing, fuel filter, etc? If not I would do that stuff. Especially if the truck has sat for 5 years.

    Harley
     
  8. dyeager535

    dyeager535 1 ton status Premium Member

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    I'd second doing a good tuneup.

    99% of carb problems, aren't. /forums/images/graemlins/smile.gif
     
  9. Eric M.

    Eric M. 1/2 ton status

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    I had the same problem with a Buick years ago. Turned out to be the fuel filter. Give that a shot, can't be much more than $5 to $10 and if the truck sat for 5 years, it's a good idea anyways.

    Does your truck even have a computer? I'm pretty sure computers didn't come into play until the fuel injected motors in 87.

    Good Luck,

    Eric M.
     
  10. BlazerWheels

    BlazerWheels 1/2 ton status

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    My '85 has a computer....

    I vote fuel pump and filter....
     
  11. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    Re: fuel help! stubling under load untill I shift, CCC carb ?\'s

    [ QUOTE ]

    Does your truck even have a computer? I'm pretty sure computers didn't come into play until the fuel injected motors in 87.

    Good Luck,

    Eric M.

    [/ QUOTE ]
    Mid 80's california( and a few other states) came with a CCC setup. Computer controlled carburetor and ESC distributer. A computer controls that crap, it's a primitive computer but it's there. (think of a black and green macintosh comp) /forums/images/graemlins/histerical.gif
     

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