I have to throw in an X3 on a little air getting in the line. is it any harder to start overall or just acting like 1 or 2 cyl's run rough? it could be a return like air leak also.


after running a ford 6.9 for awhile it's easy to spot that issue.

 

sounds like a leak to me

 

No it turns right over, it just sounds like for 3-4 seconds its not getting enough fuel to run.

 

air in the lines