Bad idle now rough constant (injectors?)

[scryd]

hey all I need some tec advise as my rig is goin to the stealership tomeorrow to try an figur this sh* out.

Stock 05 3500 started tickin like lifters 5k ago -had them adjusted
shortly after noticed rough idle itermittently checked for bare wires found nothing but problem stopped.

2 weeks ago started rough idle expecialy when cold sometimes runs fine other times real rough and blows black smoke.

have checked oil, no sign of Fuel, checked manifold temp on ech cyl when rough idle and 1-6 are 20-30 deg colder

then today it almost died runnig 50 mph and is missing BAD.

no codes no lights

pulled the batt wires to re-set comp and drained/checked fuel filter
re started to pull out of garage and it is knocking like deiselin "ping" on all cylenders?
WDF??

NO gauges

[Tango]

how clean is the air filter?

[scryd]

all filters are new,
also pulled fuel filter and cycled key to check lift pump and seems to have good pressure.

If I cracked a injector tip or if the injector is leaking down it that just a tip replacement or do I need complete injectors?

[LPD111]

If the nozzle is cracked then the nozzle can be replaced

If the injector body is cracked, you will need a new injector

If you do have cracked injector, replace it ASAP before you fill crankcase with diesel

[Tango]

sounds like an injector is stuck open or cracked and dumping fuel.

I would also re-check the valve adjustment. A friend's 2003 and a similar problem and the clip holding the valve to the spring was bad.

[RamSport59]

In my 24v a injector tip cracked open and cost me a motor and turbo.

Rick

[steved]

A solenoid in an injector is bad...it will hang CLOSED and not cause a fuel/oil/smoke issue...

[Tango]

but he said.... smoke

2 weeks ago started rough idle expecialy when cold sometimes runs fine other times real rough and blows black smoke

[steved]

Injectors on a 3rd gen don't follow some predetermined pattern...especially when the solenoids fail. They can fail closed, operate normally, fail open, operate normally, not open at the correct speed/duration, operate normally.

But hey, that's just coming from someone that fought solenoids for over a year on a 3rd gen.

Forget I said anything.

[RamAford]

Definitely injector issues. I would replace them and be done with it.

And that Steved guy knows a few things about diesels