It was 15 degrees here this am, went out and tried to start the truck. Cranked for quite a while, and finally she started to run, kinda. Acted like it was missing but looked in the mirror and black smoke was pouring out of the exhaust. Truck would act like it was going to die, then run normal, then act like it was trying to die, then normal. Truck did this for about a minute, all the while pouring black smoke out, then all the sudden started running normal.

I know lots of black smoke usually mean way to much fuel, correct? Im wondering if this is injector orings starting to die, or possibly just injectors leaking.

Any thoughts on this?

Thanks.

 

<DT>Black smoke: <DD>Caused by excessive fuel for the amount of air drawn into the cylinders. Some black smoke on hard accel or at higher altitudes is normal.
Excessive black smoke could result from restricted intake or exhaust, inoperative leaking or weak turbo, intake hose(s) leaks, leaking or worn injectors, fuel return or supply restriction, stuck Exhaust backPressure Regulator valve or solenoid. Also PCM inputs such as BARO MAP ICP or EBP sensors. </DD>

 

sounds like you might have a glow plug or GPR issue.

 

definately gpr/gp issue.since its getting chilly out, hook your block heater up. my truck did the same thing & keeping it warm throughout the night helped until i was able to put new relays in

 

I just replaced the gpr about a week ago. All new glow plugs put in about 8 months ago, along with under the valve cover wiring.

Tested the glow plug relay in case yesterday, and voltage is fine. Any other ideas to check for?

 

Since oil is used to fire the injectors, when was it last changed?

 

Oil was changed about 1500 miles ago I would say. Pure Rotella Synthetic for the winter.

 

What are symptoms of the injector o rings leaking?

 

Just a thought, I think the Exhaust back pressure valve operates for a period of time to bring the engine temp up rapidly in cold weather. That would cause your systems I believe. I live in San Diego, so mine has not ever operated, so I am out of my element on this one.

 

No, a closing EBPV would not cause black smoke or poor running engine. It could be bad diesel, do you run DK? I wonder if they changed over to winter diesel yet. Other then that, I am out of thoughts.

 

My truck hardly would run with a EBPV closing (no black smoke).
But it for SURE can make it run poorly.
I had to wire mine open to get the truck to run.

 

after it runs, runs great, takes a minute or so, then you can hear the ebpv close and do its thing, so I assume its working......

 

Try starting it in stock and see if that does better. Sounds like it's just over fueling.

 

If I had a problem with the fuel delivery, i.e. plugged screens in the tank, which i suspect a little bit, would this cause this? Started it just a few mins ago, and same symptoms, but this time I shut it off during all the black smoke stuff, restarted it and it ran totally normal. Im stumped.

 

Black smoke comes from excess fuel. a plugged fuel delivery could cause hard starts, but not black smoke.
I think your Edge may be dumping extra fuel.