white smoke... almost all the time :(

Discussion in '6.9L IH & 7.3L IDI Diesels' started by 93fordturbo, Mar 31, 2011.

  1. 93fordturbo

    93fordturbo Full Access Member

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    My truck has for almost as long as i have had it, blown some white smoke. At idle it doesn't that i can see, but when it just starts up it blows a lot of white, but it smells like fuel, burns my eyes. No sweet smell or smell like antifreeze. When i take off, even when its warm, it will blow black when i really get on it, or shift through the gears but anything over idle when driving it seems to blow white, or possibly gray. Anyways, i ran it a little low on oil once, i think i was about 5 quarts low or so. Also, when it start it up, it has a knocking, or ticking noise, almost in between. Maybe its out of time, or maybe its just me and these old idi's sound like that. But when its at idle and i raise the rpms a little, it goes away, and almost comes back at a higher rpm. Other than that, runs great. The glow plugs don't work now, so i start it with ether a little. Glow plugs come tomorrow hopefully. So i dont know if it starts hard. when its warm though, it starts right up and the truck runs great otherwise. any ideas?
     
  2. smokinbaby

    smokinbaby coal lover

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    sounds like injectors or timing.. white smoke is either a fuel problem or a coolant problem... do you have any coolant loss?
     
  3. 93fordturbo

    93fordturbo Full Access Member

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    well, i have driven it probably over a thousand miles, or about a thousand miles, and no coolant loss at all. i topped it off a week ago, but it wasn't down much at all, and it was at the same spot when i bought it. Could i have lo compression due to low oil level before? oh, and it has gcodes for injectors. need to get em changed
     
  4. hesutton

    hesutton The Anti-Anderson

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    The white smoke is fuel from cold combustion when you start it up. The white/grey is likely the same thing, but like stated above, it sounds like you have an injector or injectors that have seen better days. A few are likely leaking and/or have a poor spray pattern/low pop pressure.

    Timing can also play a role.

    Heath
     
  5. 93fordturbo

    93fordturbo Full Access Member

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    what about the ticking and knocking sound? just me or could it be bad??
     
  6. Dieselcrawler

    Dieselcrawler Super Moderator Staff Member

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    that also can be injectors
     
  7. redneckaggie

    redneckaggie rebel w/o a cause

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    if the knocking only occurs on startup you could be using to much ether
     
  8. 86ford69

    86ford69 86 Ford F250 6.9

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    Mine does the same thing. Same knock slash tap. Same white smoke sith strong diesel smell same hard start and injector issue. I advanced the timing last week it didnt help. Smokes lime crazy when it cold but after 10 mins or so its fine. No black smoke just some grey when I mash it or run it up to 2500. Im seriously leaning towards injectors.
     
  9. Halltrail

    Halltrail Full Access Member

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    smoke

    I had a lot of white smoke when I first got my truck...but mostly at start up and idle. I advanced the timing a dimes width and it went away.
     
  10. RustyRecycledT

    RustyRecycledT Full Access Member

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    Just went through this with brother in laws '92. New injectors didn't help. New IP cured it.
     
  11. redneckaggie

    redneckaggie rebel w/o a cause

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    could be either because I have had two trucks do this to me and new injectors fixed both of them. the bottom line is you have fuel getting through there almost completely unburnt. could be the injectors bleeding off or an ip problem
     
  12. MidnightBlade

    MidnightBlade Shiftin' Smooth

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    Injectors and IP's should be replaced as a pair because if you put new injectors in with an old IP it will just finish off the old IP anyway.
     
  13. OLDBULL8

    OLDBULL8 Good Morning Ya'll.

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    When using that ether to start, have the hood open so it don't get damaged when a head blows, or maybe it will tick and/or knock because the rods are bent.
     
  14. 93fordturbo

    93fordturbo Full Access Member

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    Well, i had to get to work, so i used ether, couldn't push start it by myself, 8000 pounds is too much for me to push. Now i got glow plugs, ether doesn't hurt too much in small doses. Still, if it is pushing too much fuel tho, why is it whity/grey/blue? I get on it, and it blows black mixed with white or grey smoke. If it was too much fuel, wouldn't it be just black??
     
  15. OnDaRoad

    OnDaRoad On the road ....

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    For starters never use ether on a diesel engine with glow plugs :rolleyes:

    Instead of guessing invest $100 in a compression test from
    a reputable diesel shop on all (8) cylinders

    Baed upon those results - take corrective action


    Jim
     

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