The link that Kerry supplied is not working for me?? I am at a wedding and using someone else laptop and internet....

«the little primer pump is replaced with the new style already (thanks to shopforum I upgraded when the motor was on the engine hoist (great access)

Anyone know the link to Kerry`s sudjestion

Thanks for the sudgestions. seems to be linked to steep grades (maybe my pick up gets air when the diesel is at the end of the tank)

That sounds plausible.