I think I've narrowed it down to the continuous valve/check valve in my filter head being the reason my truck would start up then die after being parked for a few days. Lots of air in the return lines.. Anyway my 91 has the style with the rubber reed valve (one way valve) and it is in bad shape. I ordered a new fitting and valve from the dealer today but it looks to have a spring and ball instead of the goofy rubber flapper. Is this an upgrade over the original? Will this work with the filter head I have now? I need the truck this weekend a little worried this is not the right part. What do you think? Thanks,
Andrew
Andrew