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funny glow plug controller

Discussion in '1982-Present GM Diesel' started by colbystephens, Jul 31, 2006.

  1. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    ok, so my controller makes this wierd grinding noise when it's on. it doesn't just click on and click off. today my glow plug controller would only glow for about 4-6 seconds. which was enough, but i'd like to glow closer to 10 seconds, and when i released the button and then pressed it again it wouldn't work. any thoughts?
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    You running some sort of manual glow plug set-up?

    Rene
     
  3. colbystephens

    colbystephens 1 ton status GMOTM Winner

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  4. cegusman

    cegusman 3/4 ton status

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    Sounds like time for a new relay
     
  5. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    how much do those go for?
     
  6. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    also, if it goes out on me, is there a way to manually cycle the glow plugs - like touch a certain couple of wires to the battery? seems like i could possibly touch the peg on the controller which points toward the engine to teh positive terminal and that should do the trick.
     
  7. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Grounding the light blue wire will force the GP's on, bypassing the controller completely. If the relay is done you're SOL though. At least they're pretty cheap, usually under $20.

    Rene
     
  8. diesel4me

    diesel4me 1 ton status Premium Member

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    not really..

    I've jumped glow plug relays with a pair of pliers..just bridge the two big red wires together with them ,or a peice of heavy wire..or jumper cables..ten seconds later,start it up,and remove the jumpers..--who needs a working relay??..:D

    Had to do that to my winch a few times too,when one of the solenoids rusted up ,and refused to engauge..:crazy:
     
  9. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    good info - thanks!
     
  10. BKinzey

    BKinzey 1/2 ton status

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    If it's over 80 degrees shouldn't need the GPs at all.
     
  11. colbystephens

    colbystephens 1 ton status GMOTM Winner

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    that tip will come in useful one day a year...i live in portland oregon. :wink1:
     

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