mornin all, my 96 7.3 has been sitting for a year, running itall the time but just around yard. got low on fuel so i ran it to fill it up.heavy smoke out exaust, whitish lightblue. drove around block couple times again lastnight, same thing. think from sitting or something wrong? dont smoke at idle or reved up 147k miles thanx all

 

could be some bad glow plugs and/or injector o-rings. the white smoke would be unburnt fuel, couple glow plugs not working on start up, and the bluish is oil, prolly from your o-rings.

 

If it's been sitting a lot, and only been moved a little around a little, you could have some oil in places that needs to be burned. O-rings could be an issue. But I'd change the oil and filters (fuel too) and take it for a drive and get it good and warm and see if that doesn't get it cleared up.

 

Exactly, give it an Italian turn up, run the crap out it and blew the cob webs out of it. My wife's TDI sat around for six months and when I started it, it was smoking bad. Took it out for a hard run and its not smoking now.

 

My 95 sat up for about a year and is doing something similar.
It is puffing a bit of whitish smoke out of the tailpipe under acceleration. It seems to puff more if I turn the chip up to higher power levels. I drove it around about 60 miles today, stop and start, and highway speeds. I took it over 3000 rpms on a couple shifts and I even cruised at 2300rpm in 5th for a bit. Seems to still be smoking under heavy acceleration.
I've been told faulty injectors can cause that, and I have 240,000 miles, so it wouldn't surprise me.

 

If those are originals, then yes, possibly the injectors, but more likely the injector o-rings. With that kind of miles though, I'd do the injectors too since you got to pull them to replace the o-rings.

 

They probably are, everything I repair appears to be original, lol. It still has the complete exhaust along with a host of other easily replaceable items. I think it may still have a dual mass flywheel too.

I have looked at injectors before and avoided pulling the trigger because of pricing. I guess I should search a few threads to see what the cheapest way of doing it is. Hopefully my cores can cover most of the purchase price.

In the meantime I am gonna run this old fuel out and see what a fresh tank, with some two stroke in it, does.

 

While you're at it, what kind of oil is in it? And how old is it?

 

Changed it today before I drove it, rotella.

 

Jim at rosewood diesel can hook you up on the injectors. Thats where pretty much every one on here goes to.

 

I have read that in a few threads. I'll have to check out the website. How is their pricing?

 

had some luck, finally something didnt cost me anythig. i tried the run the run

the crap out of it approach, WORKED ,i still smoke but truck doesnt, thanx again

 

Now its time for you to stop smoking, LOL