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I need Help!!!!!

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by ZfromNJ, Mar 14, 2001.

  1. ZfromNJ

    ZfromNJ Registered Member

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    I am having a problem accelerating. Whenever I step on the gas it seems like I get no gas to the engine and my truck starts out very slow. Almost as if it is going to stall. Is this a problem with my carb since it just recently had to be adjusted to pass inspection, or is it something else? I need Help?
     
  2. Confederate9

    Confederate9 1/2 ton status

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    well back in the fall mine started to do that. and so on start ups like from stoplights, i would pump the gas to go. i did that for about 1 week, then it went away and never came back!!!!
    also try changing all your fluids.

    <A target="_blank" HREF=http://confederate9.coloradok5.com/>http://confederate9.coloradok5.com/</A>
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  3. Storm Trooper

    Storm Trooper 1/2 ton status GMOTM Winner

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    How is it after you get going? You maybe loosing your fuel pump. If you can recreate the problem at anytime, take your air cleaner off and when it does it give it a small shot of starting fluid to see if it picks back up. If it does, you may have a fuel problem.Do not do this too much, starting fluid is bad for your motor. Anyone here will need to know all the basics to help you, what year is your truck, motor, carb type, does it happen when hot/cold etc. We need more info.

    [​IMG]
    [​IMG]<font color=red>Rid'in High In My K5[​IMG]
     
  4. ZfromNJ

    ZfromNJ Registered Member

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    I thank you guys for the response. I am finding these problems when I start off form stop signs and when I accelerate from a complete stop. But once it gets going I am fine and it runs fine. I have a 74 Blazer and I thought the guy told me that I bought the car from told me that it was a brand new pump in there, but I could be wrong. Thanks again
     
  5. 90K5

    90K5 1/2 ton status

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    Try changing the fuel filter. It may be the problem, but if its not its only a few bucks.

    90K5

    See my truck at <A target="_blank" HREF=http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502>http://albums.photopoint.com/j/Albumindex?u=1329584&a=9886502</A>
     
  6. muddin4fun

    muddin4fun 3/4 ton status

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    How old is the fuel filter? Do you have a catilitic converter on it? How old is your egr? These things are simple things to check. The fuel filter is cheap so go ahead and replace that if it's old or you don't know how old it is. I don't know what kind of exhaust set up you have, but if it's stock you can unbolt the y-pipe and see how it runs with that unbolted. If it runs better, then your cat needs to be replaced. If you have headers and you have a cat on the exhaust, unbolt the headers. In both cases, get new gaskets so you can replace them cause they'll leak when you put it back together. I'm not sure how to check the egr but if it's old and the two other things have not shown any improvement, then replace that. Hope this helps!

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  7. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Several things to check. Note: some of these things will generally not apply if it happened suddenly. Also, many of these should also cause rough idle and poor power over all.

    More or less in order by ease of access and/or likelihood.

    Idle (too low = stumbles but picks up as revs do)
    Accelerator pump (in carb)
    Look down carb throat with choke open
    Can you see spray when open throttle?
    Do not check with Engine running!
    Fuel filter(external and in carb)
    Fuel pressure
    Vacuum leak
    Timing (bad advance?)
    General ignition condition
    Compression (burnt valve?)
    Worn out cam (or valve train)

    That's all I can think of right now.

    Bad Dog

    85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56
    Coming soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
     

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