84 GMC 6.2L Diesel Question.

[JustOneTruck]

Hey its getting warmer out and I have a question on why my truck now is running rough at IDLE. It did this last year to but I didnt drive it a lot .Meaning maybe 10 to 20 miles a week . The glow lights come on at start and goes on and off just for a few just like it should. Then after it warms up maybe 2 to 3 minutes the elctronic part that releases the peddle {diesel-Peddle}I feel it release as Im setting their in the drive like a click and then it goes into rough idle. In all the truck runs great in any other condition.

So it runs rough warm or cold at idle.

Is their a idle adjutment or intake adjutment.

My truck does have that intake with the egr.

Thanks all .