White smoke at startup

[99f350]

My 99 F350 has been smoking really bad when you first start it, if it is cold it just covers the parking lot with a white cloud and smokes like that until it warms up, if it is somewhat warm it doesnt smoke as much but it is still there, I plugged my code reader into it and it isnt showing anything, I've also put two cps's on it recently and nothing has seemed to help, a tech man I talked to told me to try the glow plug relay so that's my next step, anybody have any ideas? thanks

[bigcountrysg]

99f350 if you do not plug your truck in this is typical of any diesel that I know of. My 02 does it too. The hummers I worked on in the Corps did it, the 5-ton cargo trucks I worked on in the corps did it as well. It is due from the engine being cold. I wouldn't worry about it to much if it is only whitesmoke and the engine and air temps are cold. If you have blue smoke then I would be worried as blue smoke means your buring oil.

[99f350]

It still does it even when it is plugged in and the other day I parked it in the shop at work for about 3 or 4 hours where it was 70 degrees and it still poured smoke when I started it, I've had many people tell me it was ring smoke but it hasnt been using any oil

[bigcountrysg]

Then maybe glowplugs are going bad. I doubt it would be the Glow Plug Relay. How many miles on the truck.

[99f350]

It just hit 152,000 miles

[strokermann]

are you looseing any coolant.

[bigcountrysg]

I know my truck 02 with 137,000 blows whitesmoke in the morning even if i plug it in. Not all the time just when it is cold out. This morning it was fine and it was frosted covered I forgot to plug it in as well last night. I am lost now I am not going to tell you it is this or it is that and have you spend money guessing at what is wrong. Hopefully Marc, or Stroketechintraining, or another guy with more knowledge of these engines steps in to help out. But I never worried about the whitesmoke I was always taught it is part of a diesel being cold in cold weather.

[99f350]

I may be losing a little coolant but am not sure I'll watch it closely these next few days. I used to have a 95 F250 and it would always smoke some when it was cold but this truck literally just pours it out, you could stand behind it and not see the truck, if I can get ahold of a camera i'll try to show you guys a picture

[bigcountrysg]

Does the exhaust have a sweet smell to it. I know your not supposed to smell the exhaust or breath in the exhaust due to carbon monoxide. But I am asking you this question because if you do have a sweet sugar smell in the exhaust gasses then you may possibly be burning coolant.

[99f350]

The exhaust does have a smell to it, I dont know if I would call it a sweet or sugary smell but it is different and now that you say that I have noticed that smell without the smoke whenever I hook up a trailer or am sitting idle somewhere