excessive white smoke at startup

[Nickbf2504x4]

now that im a colorado resident ive noticed that whenever i start my truck it smokes and idles very rough until it reaches operating temperature (5-10 mins of driving). i know that i have a small fuel leak but does this sound like a fuel or GP problem hope all is well with you guys and i will fill you in on the trip details soon.

 

[yARIC008]

Well does the truck start up quick when it's cold or do you have to run the starter for a bit? Sounds more like a glow plug problem to me. But if your WTS light operates normally and you don't have to crank for long periods then it'd gonna be something else.

 

[Agnem]

Cold advance and idle working OK?

 

[Nickbf2504x4]

mel what about timing? i still haven't found a shop around fort collins to time my truck.

3-7 seconds of cranking required...but i am still leaking fuel from somewhere also

 

[Agnem]

Well thats why I asked about the cold advance. It would be nice to know it is working. A dynamic timing job could confirm it.

 

[Nickbf2504x4]

to test cold advance...ignition on and I remove the connector and see if I hear a click? CTA is the furthest from the driver correct? thanks

 

[Agnem]

Maybe. Maybe not. I don't think listening to the sound of the solenoid closing is going to be much of a test. If the return line is obstructed, or the fuel port in the valve is plugged, or whatever, you won't realy be satisfied that it works. You pretty much need to tell by either a change in the sound of the engine, or by observing the timing change with a meter.

 

[F350camper]

Ya, I think your ear is gonna be the best tool on this one. Since neither one of us has a meter. I would disconnect both of them before your next cold start up. And then hook up the fast idle, make sure the rpms go up. Then disconnect the fast idle and hook up the timing, make sure you hear your timing advance. (Don’t worry, if its working you’ll hear it)
Hmmm, I dunno Nick. Rough idle for 10 min?! That’s a long time. It sure sounds like that pump isn’t doing something right until you get up to temp. Just for a point of reference, I run with my fast idle and timing disconnected, she fires and runs smooth from a cold start and all day long.

Once you're done with checking your fast idle and timing advance, you prolly should fix that fuel leak and be done with it. I don’t think its your whole problem, but it can only be making a screwy problem even screwier. That’s my .02

 

[Nickbf2504x4]

(off to the parking lot to wrench on the black beauty) i will keep you guys posted

 

[DieselRain]

I am having the same problem with my 6.9L it can not be solved by replacing the injectors. I already tried that. anyone else know how to fix it??

 

[Nickbf2504x4]

ok all GP's are good, fuel leak is good...but the truck still runs rough and puffs white until the coolant gauge gets up to operating temp... the CTA is working( i heard a difference between connected and unconnected) sounded better disconnected so i took her for a drive and it runs a lot better

anyway i just filled my front tank with B20 at 2.69 a gal mom told me #2 is 3.30 back in socal