Truck's been running great lately...lots of boost and turbo spool..started getting hesitation when starting off cold. Decided to check lift pump by way of the petvalve near thermostat housing. Truck died after a few seconds. No fuel out of petvalve. This is the 3rd CARTER liftpump I have changed...what others are available..Part Numbers? Comments? I got a junkyard spare off a 6.2 on it now..

Tank clean?...

350,000km clean...never been out that I know...fuel filter doesn't have alot of crap in them when I change them..last lift pump I cut it open and the spring was broke...made noise but no pressure.