Ive done a search and found some info but can not find the thread again. My truck died on me for the second time yesterday. It is a 2000, dp tuner, intake, exhaust, fuel shim, ccv

The first time it died was right after i shimmed the fuel regulator. It seemed like the truck got flooded, lost one cylinder, then another, then another, ran really rough and eventually died. Slow process with white smoke that looked and smelled like unburned diesel. So I go towed home, though I may have shimmed the regulator to much or it got stuck on the lip. I let it sit for about two hours, went out took the fuel regulator apart, made sure spring was in center, put back together and started the truck up. It started rough, white smoke, then eventually cleared up, so I thought I fixed the problem.

Yesterday I was leaving my house to go to a christmas dinner, fuel light came on because I was low. About a mile down the road, lost power, ran rough, and died again. Tried to start it back up and would barely run, white smoke then slowly died. So I went to get some diesel in a can and put two gallons in it thinking maybe it ran out of diesel and still no luck. Towed back to the house and just left it there. Came on here and started searching. I found a thread similar to what happened to me and the guy said it turned out to be low on oil. I am only two quarts low( just on the add mark). I really dont think that is the problem. So I just went out and started it up after it was sitting for about ten hours and it cranked up, ran really rough with white smoke coming out of the exhaust like it is a cylinder or two down. Didnt let it kill itself and shut it down.

I also read someone suggest maybe a stuck injector or bad injector o-ring.... What do you think?
I am in desperate need to get this thing fixed as I have to leave for NY from louisiana next thurs. Thanks for the help. (sorry for long post)

 

ok, I went and added the two quarts of oil and its running now(I would have never though only being two quarts low would have did this) but on my tow tune on the dp tuner I am still getting some white smoke revving it in idle but when I switch to the econo or race tune then I get normal black smoke??

 

It sounds like you may have other issues going on. Is the oil level dropping faster than normal?

 

I know what you mean, I dont really think it is fixed. It doesnt seem to be dropping faster then normal... It is still reading right where I filled it to just a little while ago. I really dont want this to happen again about half way between here and new york next week!!

 

How long have you had your Tuner? Does the smoke continue after it warms up? Is your coolant staying full? Sorry for all the questions, just things that will help us figure it out.

 

Ive had the dp in there about a week, before that I had a hypertech. I didnt have any problem after the installation of the dp. Are you referring to the smoke in the dp tow setting or when it was running really rough and died. In the dp 60tow setting it is blowing white smoke only when I rev it in park. When it is running really bad and then dying it is continuous white smoke. The coolant is right where it has always been.

I have no problem answering the questions, that means somebody is trying to help me!

 

How old it your oil? Fuel filter? I don't see anygauges in you sig. so I will assume you don't have any. Do you get any CEL light when it is running rough? If you did run out of fuel it will take a while for the air to get out of the system. Same thing with low oil. Is it very cold where you are and does the white smoke at idle continue when engine is warm? If the problem began with the install of the DP-Tuner, you may want to remove it and see if the problems continue. While rare, they do have their problems. It may be as simple as a bad connection on the tuner. At very least, run it in the stock posistion and see what happens.

 

My oil is about 4k old. Mobile delvac with mobil 1 filter. Fuel filter was changed with oil. No I dont have any guages yet. No SEL when it is running rough but I think there maybe something wrong with the light because I dont get one with my dp tuner either and I dont have my boost anihalator installed yet. It is about 40 and I am in southern louisiana(not to cold). It did this once before when just running the hypertech about two weeks ago. I will go out and put it in the stock position.

 

I will recommend gauges before you really tear something up. Gauges are our window into the powertrain. Without them, there is a lot of guessing. Playing with your tuner and not know how hot things are getting is flirting with danger. All of your dash lights should come on when you first key on. You need to find someone to check for codes that may be stored. A little white smoke on startups in not bad, white smoke after engine is warm may mean problems. Mine did it when my EBPV was stuck mostly shut.
The stumbling is a problem, it could be any number of things. UVC plugs, bad injectors(doubtful as problem comes and goes) bad fuel, bad oil, IPR, ICP, and several more. Most will be narrowed down with a good code reader.

 

Ya I was going to order some this week but now the truck is acting up so I believe my funds will be taken to repair the truck. The ses light does come on when I turn the key on. Can I check for codes with the hypertech? I also have an sct tuner for my car, duno if I can check with it? Ya when it is running good, there is a little white smoke on startup but when it is dying and running really bad it smokes the whole time. Where can I either get a good code reader or have it done? I assume ford but i am sure that will be costly.

 

Most readers for cars won't read a PSD. That's the problem at places like AutoZone and other parts places. I doubt your SCT will but you Hypertech may. You CEL sounds like it is working if it lites at key on. May not have any codes if you haven't seen it light up. I hope one of the real experts jumps in soon.

 

I think it may be the fuel pump. It seems like it is taking it a long time to prime and its not humming like it used to. I took the fuel filter out and drained the fluid. Filter looks fine, still white. It may have been on its last leg and when I shimmed the regulator it might have killed it running the extra psi. I am not sure if this is rigt but if the hpop doesnt get enough fuel then it cant build enough pressure, then the fuel just runs in instead of atomizing and that may be why the white smoke???

 

Drain fuel bowl, leave drain open, turn key to run, check for steady stream of fuel(enough to fill a quart jar in about a minute) you may want to slip a piece of fuel hose over the drain tube so you can direct were the fuel goes.
if you get a good steady stream then fuel pump is probalby OK. I am wondering how much trash your fuel pickup took in a couple of weeks ago when it ran dry. there is a nonservicable screen inside the fuel pump, it could be clogged. you can rule out the tuner cause it has done it with both.

Just to be sure is the fuel from your normal fuel source(known good), or did youfill up at a different place this time?

 

well I put a new fuel pump on and now i can not get any fuel to go into the fuel bowl... I have a itp in take setup waiting to be put in so tomorrow I may drop the tank and do the mod. When I do this then I can rule out all the in tank stuff and fuel pump because all of it will be new.

 

How much fuel is in the tank? not being a smart azz, but 2 gallons only equals about 1/2 in depth in the tank, and if your on a slight incline the fuel will be pooled at on end, and the pickup is in the middle. could you be having problems with low fuel not picking up?