check the shut off valve on top of the pump for a leak internally. Little round guy with a single vac line to it behind the rail. If you change it, test it first, then start it, if you miss the pin it goes wide open and shutting it down can be fun. not to mention a bit hard on its innards.
Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.