start off if truck as been sitting for 20 min. runs fine then motor sarts to run up aginist its self then blows out blue smoke. hold the throttle more then white smoke.checked oil and it was low. changed oil and same issue. so i changed fuel filter, fuel pump, ipr valve, cps ive tried to unplug the epb. it makes the porb not so dramatic, but its still there. any help would be nice

 

Welcome to FTE. When you say the "motor starts to run up against itself", is sounds like the EBPV is closing. Can you watch the shaft connecting the pedestal to the outlet and see if it's moving? And since it's blowing blue smoke, that tells me it's oil, and that may be leaking into the exhaust from the turbo. Might be worth pulling the down-pipe loose and having a look in there. You'll be able to see the EBPV and see if any oil is being blown out...

EDIT: Where are you located? Maybe there's someone close by that can help diagnose this for you.

 

i removed the inlet pipes for intercooler and its bone dry.

 

What Joe (Izzy) is saying is loosen the exhaust down pipe and see if the EBPV (exhaust back pressure valve) is closed or partly closed. Also check for any signs of oil in the down pipe or turbo exhaust housing.

Also, there may be an FTE member close by that can help you so let us know where you are.

 

sorry guys. im in lafayette la.

 

That's not that far from Rick Miller -- I think he's in Lake Charles. But a lot of folks are up at the Riff-Raff East event, including Rick.

But yeah, I'd be having a look in the exhaust housing of the turbo to see what the EBPV is up to and if there is any oil getting pushed out there. If it is, the turbo will have to be pulled & rebuilt. And you can gut the EBPV out of the outlet and the actuator out of the stand. It will save you a source of an oil leak and possible EBPV issues later.

 

A stuck EBPV will not produce any smoke.
Since you living in the south the weather is too warm to consider failed glow plugs.
It could be a factor, but I doubt it right now in the month of August.
It's probably at least 80+ and the elevation is low.
If your compression is good, what I would be doing right now is buying some injector o-ring kits, pulling all eight injectors and resealing them.
Remove all the glow plugs.
Re-install all the injectors. Torque them to 120 inch pounds.
Retorque every rocker arm pedastal to 20 foot pounds. They tend to loosen up over time.
.

 

No, but dumping oil into the exhaust housing will (after it's warmed up). I think he has two problems. One may have caused the other. Burned crusty oil in the EBPV could cause it to stick...

Let's hope it's something simpler than pulling all the injectors!

 

i am taking all this into consideration. in the next day or so i will pull the exahust side off and check for oil. another thing i noticed is when this troube started i went fuel up the truck. i have ran it abput 45 miles and its has burned half a tank. any suggestions.

 

Here is some info on smoke, hope it helps.


Blue or blue/white smoke:
Caused by insufficient fuel or oil consumption. Normal when engine is cold or idling for extended periods.
Excessive smoke could be caused by air in the fuel, contaminated fuel, loose or plugged injectors, worn or leaking injector o-rings, thermostat stuck open, oil consumption, or plugged crankcase depression regulator valve. Also PCM inputs such as MAP or ICP sensors.

 

hhmmm... You burned half a tank in 45 miles??? That's a pretty important piece of info. Makes me wonder if you don't have injector issues after all. Like one or more stuck open or something. You *did* actually put *diesel* in there, right (and not gas)?? It's happened before...