OK good luck!! I could give you plenty of links about Lucas. Maybe I will just sit the bench on this one.

 

but it is not been a problem for me, I ran lucas since I have brought the truck and it is not the problem, it sounds more like a fueling problem to me

 

Ok I can't sit the bench, its just not me....

It IS a fueling issue!! your injectors are fired by high pressure engine oil! engine oil issues directly affect you injectors.

Humor me and plug in your block heater over night.

 

forget the help I will, go to international tomorrow and have them look at it, thanks for all the help anyway

 

Good luck. post your results please.

 

icp is fine, not oil weight problem, injection oil pressure is in the correct specfication

 

Drop $2500 on new injectors then....

 

I have a snap on moduis scan tool and all pressures are in correct spec,

 

but is that for sure the problem, I work a sternbergs international in the part dept

 

Honestly it sounds like you have the cold weather romps. This is a normal condition for HEUI injector trucks. It can be "fixed" with lighter weight oil or using the block heater to warm the oil some. The modis isn't fast enough to see all the pressure spikes from the thick oil.

 

That I did not know, Thank You

 

You welcome. Here to help!

 

what would you use oil wise

 

Right now I am using Schaeffer's 9000 5W40 sythetic, I have also used Rotella 5w40 sythetic and Rotella 10W30 all with good results in the winter time. Year round for that matter with exception to the 10W30.

 

I assume that you also checked all glow plug wire harnesses for shorts? As for the oil, Tim is correct. And no offense, but I could pick about 15 guys on this forum that have forgotten more than any 200 people at international know about the 7.3.

Tim, Lucas does make a synthetic that is SUPPOSEDLY specified for use in the 7.3 and 6.slow. I dont know how it works, has there been a report on it yet? I have heard mixed reviews from the "other" site.....