Ok I have been having this prob for a while. I put new injectors in bc I had some out, then when I got done and ever sense then it is idling rough and as I rev it up it goes smooth then rough an back an forth. It black smokes a ton when accelerating, slightly smokes when running about 70 mph, no smoke at idle. It gets bad mpg, about 11. Someone in an earlier thread thought I might have not got the injectors seated right so I tore them out an did them all exact to spec. Nothing changed it still does all the previous mentioned problems. I don't know what to do, does anyone think it could have anything to do with the ECM?

 

did you get all 6 copper seats off the old injectors? one is not doubled up now is it?

 

Yes I triple checked every cylinder

 

that's a tough one, these 3rd gens are so hard on injectors, maybe one is still bad?

 

Ya wuts the easiest way to check

 

hate to say it

but sounds like an injector is stuck open

 

Ya could b r there any other things I should do b for I start replacing them again

 

are they all new?

if it was my truck i would pull all 6 and have them tested at Diesel Injection Service in Grand Rapids Michigan.

find a authorized Bosch dealer in your area.

 

Yes they are ok I think there's one in fort worth any clue how much that will cost??

 

Diesel Injection Service charges $30 each, they said it is a lengthy process to check them out thoroughly

they do not knock the $30 off the new ones if you buy the new ones there either.