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non starting 6.2

Discussion in 'The Garage' started by KGsK5, Feb 26, 2007.

  1. KGsK5

    KGsK5 1/2 ton status

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    went out mudding a while back and the truck shut off mid hole. turned out that somehow something had put a pinhole in the bottom of my fuel water separator.

    so i finally was able to get out and put a new one on and bleed the system.

    pulled the pink wire. cracked 2 injectors, one on each side, and cranked till fuel came out of the cracked injectors.

    then i tightened everything back up and tried to start it.

    no go. didnt even try.

    should i have cracked a few more injectors? i didnt pull the GPs because that only makes it crank easier right? it had no problem cranking and i only cranked in short bursts (10 seconds on and a few minutes off)

    what do you 6.2 guys think?
     
  2. KGsK5

    KGsK5 1/2 ton status

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    back to page 1 for the night.
     
  3. u2slow

    u2slow 1/2 ton status

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    I had a crappy fuel filter for a while that would lose prime. Never had to crack any injectors open to get it going though. What are the GP's doing? You could run the block heater for a while to get it nice & toasty. The easier you can make it start the better. ;)
     
  4. ssped

    ssped 1/2 ton status GMOTM Winner

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    I would crack the line at the rear filter and check for prime there. also try starting with some WD40. check for power to the glow plugs too?
     
  5. KGsK5

    KGsK5 1/2 ton status

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    well i have had the block heater plugged in and it was nice and warm. im 99% sure the GPs are working correctly.

    where is the "rear filter" that i should check?

    should i have cracked more lines than just 2?

    thanks
     
  6. bear76

    bear76 1/2 ton status

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    Just crack all of them first before you try spending any money. Which filter do you have? If it's the Standyne "brick" there should be a bleeder valve on the top, crack that one first then down the line the injectors. Did you check the power the the IP pump? It may have blown a fuse. I would also check each GP for voltage as well.
     
  7. cegusman

    cegusman 3/4 ton status

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    The rear filter is bolted on the back of the air intake. I would replace both filters if you haven't yet. Also fill the filters with diesel before you put them on. Then do a re bleed again.

    Pull the glow plugs this time.

    For the first 3-4 engine cranks have the pink wire unplugged. You should now have fuel to the injector pump.

    Now reconnect the pink wire and crack Every Injector line, crank it until you start seeing fuel at the injectors. Tighten the ones that you start seeing fuel at, do this until they all have fuel and are re tightened.

    Reinstall the glow plugs and try starting it. Should start right up, but may require you to hold the gas pedal at half throttle until it starts running.


    If this does not work. Start tracing all of the fuel lines and look for leaks. Also look at all the rubber lines for any dry rotting, this could also be where air is getting into the system.
     
  8. bear76

    bear76 1/2 ton status

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    I don't think the 83's had duel filters, only the 82's unless it's been modified.
     
  9. cegusman

    cegusman 3/4 ton status

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    Could be, my only experience is with my 82 6.2.
     
  10. BKinzey

    BKinzey 1/2 ton status

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    After all that, if it still doesn't start, check your glow plugs;)
     
  11. jdemaris

    jdemaris Registered Member

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    I've got four 1983 diesels and they all have dual filter setups OEM.
     
  12. KGsK5

    KGsK5 1/2 ton status

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    well i tried this exactly and had fuel dripping out of each injector.

    and then my batteries decided to crap out on my when i put everything back together. ill put them on the charger tonight and give it a try in the morning. hopefully ill get a start out of her.

    thanks guys.
     
  13. BKinzey

    BKinzey 1/2 ton status

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    Dead Batteries!!!:eek1::eek1:

    Welcome to the world of starting problems with a Diesel:haha::haha:

    Don't worry, it's a BIG club!:bow:

    Might as well check the glow plugs with an Ohm meter:p:
     
  14. ssped

    ssped 1/2 ton status GMOTM Winner

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    My 82 has dual filters too. Both are screw ons. Gota love my diesel.
     
  15. KGsK5

    KGsK5 1/2 ton status

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    When you guys are talking about dual filters, are you counting the fuel/ water separator thats on the passenger side firewall?
     
  16. cegusman

    cegusman 3/4 ton status

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    Yes. That is a filter too
     

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