by Sutter1stgen » Tue Oct 02, 2012 8:15 pm
I worked on a truck with you symptoms. And your on the right track. Its probably fuel related. I'd prime the system with the little primer pump on the lift pump. And watch for fuel leaks or air bibles from around the filter. Also check all your fuel lines before the filter. The rubber can get old and crack and thats l it needs to start sucking air. The little rubber hose that loops up to the lift pump is where I had my problem. Cracked form age. Replaced it and never looked back. Start simple and let us know what you see.
Eric
91'w250 with a new pump. This one doesn't chase itself around in a circle.