Hi I have a 97 C2500, 6.5 Lt of course. I recently had to put a new injection pump on, new fuel filter / AC Delco filter, Timed it. Had new SS diesel PMD a while ago. Since I put the new injection pump on it idles / run for about 45 min, Then quits. I have to bleed the fuel filter to get it to start again. I pulled the intake back off to check for leaks and did not find any. Checked lines from tank to pump again no leak. Any and all help is needed and appreciated to solve my dilemma. Thanks in advance. I am a newbie here.