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1989 starting problems Fuel?

Discussion in 'Chevy Trucks' started by milwaukeevtwin, Nov 28, 2010.

  1. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    Well i went out to move the 1989 chevy 2500 silverado and it would not start. It cranks over and is not getting fuel? When i pour fuel into the carb it starts then runs untill it burns the fuel out of the carb. I installed a new fuel filer and pump with hanger. Same thing? No difference. I am frustrated and thinking maybe carb problems? I here the pump running.
    Any suggestiond PLEASE HELP!
     
  2. roteye38

    roteye38 Member
    Messages: 40

    with someone trying to start it tap on the fuel regulator
     
  3. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    I do not mean to sound stupid, but where and what is the regulator?
     
  4. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    I did a search and found some pics. Will try tomorrow. Thanks, Ron
     
  5. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    Trouble

    Tried that and other things today. Nothing. When i pull the line off on the passengers side of the carb and turn on the key, Gas poors out of the line. Installed new regulator still nothing. I am thinking of dropping the tank and checking to see if my brother mixed up the lines? Would this affect it? He is not sure and second guessing himself? But i am getting gas to the carb. That is what confuses me?:dizzy: I here the pump come on when the key turns on also? If i put gas in the carb it will fire up and burn that gas out then dye. PLEASE HELP?
     
  6. BlizzardBeater

    BlizzardBeater Senior Member
    from Maine
    Messages: 420

    Is it a carb or tbi?
     
  7. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    Throttle body:confused:
     
  8. BlizzardBeater

    BlizzardBeater Senior Member
    from Maine
    Messages: 420

    I thought that the 89's where all tbi. could be wrong, but it would make a difference in what you'd have to check.
     
  9. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    All the ones i have seen. What do i check for next? Is it possible for the lines to get mixed up on the fuel pump? I did not think they were the same meaning they could screw into either end?
     
  10. BlizzardBeater

    BlizzardBeater Senior Member
    from Maine
    Messages: 420

    It shouldnt be possible. Have you tried pulling any engine codes? Changing the fuel filter? After sitting long could be water or bad fuel. Drain tank and add plenty of fresh fuel. Try the easy things first. Check to see if a fuel line got pinched putting the tank back in. I've seen this happen before and create that exact issue.
     
    Last edited: Nov 29, 2010
  11. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    fuel problems

    Already tried the easy stuff. WIX filter new regulator, Gas is only a week old. Of course filled it up. Ran fine last week. Have not checked any codes? Tank is still sitting on jack for easy access and no line pinched. I am so confused. About ready to put the tank in and have it towed to shop, but it will take a week and we may have snow coming in.
     
  12. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    Fuel gushes out when key is turned on and line is pulled on carb. No pinched line.
     
  13. RichG53

    RichG53 PlowSite.com Addict
    Messages: 1,135

    Check !!! There may be a small filter at the carb inlet..Screen....Fine mesh filter..

    Should be another fitting screwed into the carb..

    Some older one had them...
     
  14. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    not there in this one
     
  15. maverjohn

    maverjohn Senior Member
    Messages: 902

    I have a 89 chev 2500 5.7 K code with tbi I'm still learning about the truck but isn't there a fuel injecter on top of the tbi with two wires? check for a break in the wires. I will look at mine in the morning to see if I can be of more help, don't give up.
     
  16. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    problems

    Replaced them, already. Did everything i can think of.
     
  17. roteye38

    roteye38 Member
    Messages: 40

    drivers side fuel is the inlet thats where the gas should be coming out of with it off sounds like your not getting any injector pulse check to see if the grounds from the computer are still connected up they will be next to the thermastat or in a intake bolt you have spark ?
     
  18. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    How will gas come out therre with it off? It does it with the key on. Is that what you mean?
     
  19. milwaukeevtwin

    milwaukeevtwin Senior Member
    Messages: 335

    spark

    If i did not have spark. When i put gas in the throttle body why would it run and burn the fuel out? Then shut down? Does anybody know if the ignition module controls the spark and injectors? That would be my next guess:mechanic:
     
  20. maverjohn

    maverjohn Senior Member
    Messages: 902

    I looked at mine today with it running and hit the gas a couple of times, its a little hard to see the mist from the injecters but when I looked down the TBI I could see little droplets of gas on the butter flys.
    I would check for pulse like roteye said