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hei ignition

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by ksogn, Apr 19, 2001.

  1. ksogn

    ksogn Registered Member

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    hello, yesterday my car suddenly died on the highway, i got in to the side and got it started again but i stopped suddenly after 5min driving again when i was going up a little hill, i got it started again there to but it stoped sudenly when i tryed to give some gas. and after this it wont start at all.
    i checked my sparkplugs and it was no ignition i have changed the modul, with no luck. do some of you people have an ide what it coud be? please help!!!!!

    from:
    Kristoffer Søgnesand
    77 blazer k5 cheyenne

    sorry for my bad english. :)


    :)<P ID="edit"><FONT SIZE=-1>Edited by ksogn on 04/18/01 11:13 PM (server time).</FONT></P>
     
  2. Eagle86K5

    Eagle86K5 1/2 ton status

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    Sounds like you got a bad fuel pump. Mine acted the same way till it quit all the way. Pull the line off the carb and have someone crank it....no fuel means bad pump.
     
  3. wayne

    wayne 3/4 ton status

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    First take the cap off and make sure the roter turns when you crank the engine. I know it sounds stupid but I have sheered a distributer shaft before. Check to make sure the wire marked Battery is plugged in. If you changed to modual and that didn't fix it I would check the coil. Just my $.02.

    <A target="_blank" HREF=http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html>http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html</A>
    <font color=blue>Happy Trails<font color=blue>
    <font color=blue>Wayne<font color=blue>
     
  4. ksogn

    ksogn Registered Member

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    it looks like my fuel pump is ok. and the rotor in the coil are spinning. and the wire marked battery is pluged in.

    :)
     
  5. wayne

    wayne 3/4 ton status

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    The coil is on the top of the cap.

    <A target="_blank" HREF=http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html>http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html</A>
    <font color=blue>Happy Trails<font color=blue>
    <font color=blue>Wayne<font color=blue>
     
  6. ksogn

    ksogn Registered Member

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    how do i get it out? if the coil is broken do it smell burned maybe??

    :)
     
  7. Gandolf

    Gandolf 1/2 ton status

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    If you are running out of things to check and still can't find the problem, keep in mind that it's possible your new module is defective.

    '89 K5 Silverado..."You can’t have a real adventure, unless the outcome is truly uncertain".
     
  8. ksogn

    ksogn Registered Member

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    GRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR....
    i HATE ignition SYSTEMS!!!!!


    :)<P ID="edit"><FONT SIZE=-1>Edited by ksogn on 04/19/01 00:43 AM (server time).</FONT></P>
     
  9. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    If you dis-assemble the rotor from the cap closely inspect the little wires in there. My friends Jeep (with a chev motor and HEI) burned a wire inside the cap...took us about 2 hours to find it. Check that you have 12 volts going to the distributor when the key is in the on position. If you have fuel injection, check the fuel filter or just replace it. My wifes FI Mustang did exactly what you're describing and it was the fuel filter clogged. If you waited 10 minutes it would start and run for about 3 minutes...cheap fix.

    Rene

    [​IMG]<A target="_blank" HREF=http://jules.coloradok5.com>http://jules.coloradok5.com</A>
     
  10. ksogn

    ksogn Registered Member

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    iam sure thats its not my fuel, becouse when i take a spark plug out it is no spark. i am going to change the coil to day it cost 300 norwegian kr its about 30 us dollars. but i havent inspected the wires inside the cap, i am going to do that.

    from
    Kristoffer Søgnesand
    77 k5 blazer cheyenne
    sorry for my bad english

    :)
     
  11. Espen88k5

    Espen88k5 1/2 ton status

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    Hello Kristoffer!
    Does it burn oil? If your engine burns oil the sparkplugs will get a layer on them that regular wire-brushing cant cure. Before you go nuts change all the plugs. It's always the easy stuff........

    [​IMG] If your not living on the edge, your taking upp to much space![​IMG]
     
  12. ksogn

    ksogn Registered Member

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    it burn a lot of oil, but i have tried that, first i cleande all the spark plugs with no luck.....then i replased all of them with new ones, do u think that was working?? NO!! F...... STUPID CAR!!!!
    MAyby i shoud by a FORD!? :)

    :)
     
  13. Blazer1970

    Blazer1970 1/2 ton status

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    To make absolutely sure it is not the fuel pump, dump a little gas down the carb and then crank it. If it starts and dies, it is a fuel problem.

    Tim

    70 Blazer CST 4X4 350 SM465 NP205
    87 Burb 4X4 350
    01 GMC 2500HD 4X4 Duramax/Allison
     
  14. ksogn

    ksogn Registered Member

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    when i take of the air filter i can see that it is comming fuel..


    :)
     
  15. BlazerGuy

    BlazerGuy 3/4 ton status

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    This happened to me a couple of weeks of ago and I replaced the coil, module, cap, plugs etc and it turned out that AutoZone gave me a crappy module. I would check the module again.

    Murphy's Laws on Life :
    "It is a mistake to allow any mechanical object to realize you are in a hurry."
     
  16. dyeager535

    dyeager535 1 ton status Premium Member

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    I sescond that..I have heard WAY too many people that get defective HEI parts, (modules in particular) all made in korea and china etc. (read=cheap) If you've got some wrecking yards with GM vehicles, you may want to grab a couple. If you ask me a used Delco sounds more reliable a choice than new aftermarket!

    Dorian
    My K5 and Chev/Olds tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
     
  17. CaptCrunch

    CaptCrunch 1/2 ton status

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    If you are positive it's not fuel... two items come to mind... Module is bad (get an AC Delco one! aftermarket is pretty much crap on these) and pickup coil. I seriously doubt it is the coil... check if the coil is weak by pulling the coil wire while it is running an look at the spark color. Coils don't usually have this type of Intermitant problem

    [​IMG]
    1987 Chevy K5 Blazer- 350 TBI
     
  18. ksogn

    ksogn Registered Member

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    NOW I HAVE CHANGED THE COIL, ROTOR, CAP,MODUL, VACUM PUMP, SPARKPLUGS AND WIRES, still wont start!!!!

    maybe i scoud try to change the modul once more?

    whats the 5 wieres thats going to the coil?
    3 are comming from the modul and stuff i think.
    1 is power, what is the last one, its sitting next to the power line.

    :)
     
  19. wayne

    wayne 3/4 ton status

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    Try another modual. But first make sure you have power going to the distributer.

    <A target="_blank" HREF=http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html>http://jamonline.homestead.com/fromthegroundupK54x4/89Jimmy.html</A>
    <font color=blue>Happy Trails<font color=blue>
    <font color=blue>Wayne<font color=blue>
     
  20. ksogn

    ksogn Registered Member

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    WHAT IS A distributer.. hehe i am so bad in english sorry ;(.

    i have power in to the coil.


    :)
     

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