Help Needed Truck lopes/smokes at idle sometimes

[rotorholic]

Engine lopes/smokes at idle sometimes

I have a 99 f250, 7.3 with 235k, When at idle, I notice that it starts running rich and begins to lope/smoke? It does it often but not always. Im thinking it could be a injector getting stuck open? What do you guys think it is? And how do I fix it? Thanks in advance

 

[BJS]

are you still running your original injectors if so then that is a likely cause, and/or IPR sticking problem.

Does it do it routinely when hot or cold?

 

[CKyle494]

Does it use oil? Large amounts!

 

[JLDickmon]

or poor oil pressure..
when was the last time the oil was changed?
was it rated for diesel engines? due to the operation of the HPOP, it needs an anti-foam oil..

 

[rotorholic]

are you still running your original injectors if so then that is a likely cause, and/or IPR sticking problem.

Does it do it routinely when hot or cold?

It will do it when its hot and cold.

 

[rotorholic]

or poor oil pressure..
when was the last time the oil was changed?
was it rated for diesel engines? due to the operation of the HPOP, it needs an anti-foam oil..

Oil pressure is normal, I change the oil every 3-4k miles

 

[rotorholic]

Does it use oil? Large amounts!

It does use some oil not much, I travel cross country from 75-95mph a few times a year.

 

[rotorholic]

Anybody ever have this problem before?