Changed my fuel filter yesterday. Each time I do it, I run the injection pump out of fuel and have to bump and grind the starter to get the beast to fire again. Yesterday was the worst. I removed the old filter, drained and cleaned the bowl, installed the new filter and bumped the starter TEN times (as opposed to the recommended five times). Truck started and promptly stalled, injection pump out of fuel. Bumped another ten times. Nothing. Long story short... It took roughly FIFTY bumps to get the coal to the boiler. Although I hate to do it, next time I'm going to prefill the filter bowl with clean (?) fuel from a gallon can. Am I losing my lift pump? (2001 ETH/DEE, 55,000 miles)