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6.2 Diesel is getting hard to start?

Discussion in '1982-Present GM Diesel' started by RingMaster4x4, Jul 11, 2003.

  1. RingMaster4x4

    RingMaster4x4 1/2 ton status Premium Member

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    Well my girlfriends 1984 Blazer with the 6.2 is getting hard to start. About a week ago after the glow plug light went off you could crank it right up. Well now you have to turn it over for 5-15 second before it will start (this is just a rough guess on the time you have to turn it over),but but if you pump the pedle once or so it will start sooner. Where should I start? I am thinking about buying it from her,but maybe not if it could be serious. Here are the specs:

    1984 Chevy K5 Blazer
    6.2
    700R/NP208
    10 Bolt F&R
    Factory Rally Wheels W/ 31" tires
    67,000 it does not smoke
    It was owned by a elderly couple since new

    Thanks for your time. /forums/images/graemlins/ears.gif
     
  2. 84CUCV

    84CUCV 3/4 ton status Premium Member

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    I would start with the glow plugs. That is where my problem was from. You will get a lot of good help on here. They helped me put mine back together. Mike
     
  3. Tybee

    Tybee 1/2 ton status

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    Pumping the pedal doesnt do anything. But you are supposed to hold the pedal down while cranking, half way if above 32 degrees or all the way if below 32 degrees. If it started good before I would check the glow plugs, maybe there not all glowing.
     
  4. RingMaster4x4

    RingMaster4x4 1/2 ton status Premium Member

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    ok I will start there. Thanks /forums/images/graemlins/thumb.gif
     
  5. edeslaur1

    edeslaur1 1/2 ton status

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    Another test is to hook up a block heater (if you have one) overnight, then try to start it up. If she fires right up or fires up way easier, it's glows.

    You can get a whole set for about $80 if you look.

    FWIW, you're supposed to hold that gas pedal down according to the manual. I personally hate to do it since it revs up on start and there's hardly any oil in it at that point.

    Mine needs glows, but I can start it when I hold the pedal down. Once I let go, tho, it usually dies unless it's quite warm out - until it warms up for about a minute.

    Good luck!
     
  6. Tybee

    Tybee 1/2 ton status

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    [ QUOTE ]
    Another test is to hook up a block heater (if you have one) overnight

    [/ QUOTE ] /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif Hes in Texas.
     
  7. edeslaur1

    edeslaur1 1/2 ton status

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    Doesn't mean it don't have a block heater. I was in southern AZ and on of my GAS trucks came with one. /forums/images/graemlins/smile.gif
     
  8. Tybee

    Tybee 1/2 ton status

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    Good point, /forums/images/graemlins/thumb.gif didnt think about that!
     
  9. RingMaster4x4

    RingMaster4x4 1/2 ton status Premium Member

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    Well the starter went out and we replaced it and it now starts like new. Thanks for all ya'll help. /forums/images/graemlins/thumb.gif
     
  10. OFFRDK5

    OFFRDK5 1/2 ton status Premium Member

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    Did ya happen to replace the battery and starter cables too? My problem started there, especially after they melted off on a cold winter morning!! /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif
     
  11. RingMaster4x4

    RingMaster4x4 1/2 ton status Premium Member

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    Nope not yet. We will do that next.
     
  12. OFFRDK5

    OFFRDK5 1/2 ton status Premium Member

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    Might I suggest going with a 0 (aut) guage cable from the passenger battery to the starter. Moves power alot better than the 2 guage!!
     

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