Question about 1991 Chevrolet K2500

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91 Chevy K2500 5.7 engine will crank but not start.

I was going down the road the other day and the engine started acting like it was out of fue but tank showed 1/2 tank. The engine then died and will not start, I even poured some fuel down the throttle body and still would not start. What should I check first and how?

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  • 7 more comments 
  • john_brosnan Mar 17, 2009

    I checked for spark and there is none. Prior to you request I had changed the ignition coil with no luck.

  • john_brosnan Mar 17, 2009

    What would you be talking about, the only parts inside the distributor are the following;

    Control Module

    Pickup Coil

    Rotor



    There is a Electronic Spark Control Module mentioned but I dont have a illustration where it is at. see this autozone illustration

    http://www.autozone.com/autozone/catalog...

  • john_brosnan Mar 18, 2009

    I replaced the control module, the rotor and cap still no fire. Could it be the pickup coil?

  • john_brosnan Mar 18, 2009

    I will check this when I get home, the wires you are talking about are the two plugs that go in the module that I just changed right?

  • john_brosnan Mar 18, 2009

    The two wires running from the coil to the control module at the side of the distributor are both hot when the key is on. I am going to pull the cap and make sure the rotor is turning.

  • john_brosnan Mar 19, 2009

    My dist only has wires running to the control module which is torwards the fire wall. There are two plugs going to it one has two wires that come from the ignition coil both are hot, the other plug has 4 wires coming from the fire wall and none seem to be hot. THe only other wire is the wire that is like the spark plug wires that runs from the coil to the top middle of the cap. I cant email you because my email account is on my work network and Im at home on my sons computer.

  • john_brosnan Mar 19, 2009

    My coil is on the engine, it has two wires that run to the back of the dist to the module.

  • john_brosnan Mar 20, 2009

    I got it going. The pickup coil worked.

  • Thomas Kessenich
    Thomas Kessenich May 11, 2010

    Check for spark from one of your plug wires. Pull a plug wire off and get a new plug and put it in the wire you pulled off, then ground the body of the plug and see if you get any spark. It should be a bright blue. Let me know from there and I will see if I can help you out more.

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  • 111 Answers

If you have a electric distributor there will be a spark module in side of it. you need to change that. it comes with silicon that must be put on the bottom of it before you put it on. Also I would make sure that your timing is OK. Pull your #1 plug wire off and put your finger over the hole and turn it over, just bump it in tell the piston comes up. you will feel air on your finger. bring that piston all the way to the top. I use a long screwdriver(turn the engine by hand) then check and see if the marks on the timing cover line up. If it does than change that module.

Posted on Mar 17, 2009

  • 7 more comments 
  • Thomas Kessenich
    Thomas Kessenich Mar 17, 2009

    the electronic spark control module is under the rotor. you have to take off the rotor inside the distributor cap. Inside there you will find a rectangle box with a wire feed going to it. that is what you have to take off. it will unscrew. when you put it back on it will come with the silicone that has to be put on the bottom of it before you put it back on. I would get the cap and rotor too. this way you don't have to do it later. The guys at auto-zone will know what you need.

  • Thomas Kessenich
    Thomas Kessenich Mar 17, 2009

    I looked it up it is the control module. Take the old one off first and take it down there. They will match it and explain how to put it back on. I hope this helps. I have been a mechanic for 30 years. but it is hard to explain how to do something on the computer. Auto-zone can explain it better when you take the old one in.

  • Thomas Kessenich
    Thomas Kessenich Mar 18, 2009

    Check and see if you get a hot wire going to the distributor. It will plug in on the side. there should be 2 wires and 3 if you have a tachometer. one of them has to be hot. let me know if you have a hot wire going there.

  • Thomas Kessenich
    Thomas Kessenich Mar 18, 2009

    I am reading all this from the shop book. just to let you know that I am doing you right.

  • Thomas Kessenich
    Thomas Kessenich Mar 18, 2009

    They will connect to the coil on the rotor cap. If that does not work, make sure that the distributor moves when you try to start it. take the cap off and have someone turn it over and make sure that the it is rotating. when I buy a cap and rotor I buy a pick up coil with it. it is just something that I have always done. But make sure of the other things I told you are working before you go and spend money on a pickup coil. If the rotor does not turn when someone is turning it over then the gear pin on the end of the distributor is broken. To fix that you have to pull the distributor out and replace the pin. Then you will have to re-time the engine before you put it back in.

  • Thomas Kessenich
    Thomas Kessenich Mar 18, 2009

    the wires coming from the firewall. one should be hot and one should be ground. the one on the outside front should be ground. the one on the outside back should be hot. these wires go to the distributor cap. If you have a problem you can email me at T.kessenich@yahoo.com and I will give you my phone # so I can explain it more.

  • Thomas Kessenich
    Thomas Kessenich Mar 18, 2009

    one wire from the firewall should be hot and one should be grounded. the grounded one goes to the front out side of the cap and the hot wire should go to the outside rear of the cap.

  • Thomas Kessenich
    Thomas Kessenich Mar 19, 2009

    is your coil on top of your distributor in side the distributor cap? or is it on top of the engine next to the distributor?

  • Thomas Kessenich
    Thomas Kessenich Mar 19, 2009

    Please emile me t.kessenich@yahoo.com and I will give you my phone # and we can get it going.

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