Posted by Dave in Reno [75.95.96.26] on Sunday, September 05, 2010 at 23:12:43 :
In Reply to: 04.5 Cummins problem posted by JW in Wa [71.212.14.46] on Sunday, September 05, 2010 at 21:53:19 :
Could that be the manual plugger from the lift pump.
On my 96 12 valve, the return hose from the high pressure pump to the tank went bad, it is under and behind the intake manifold runs the length of the engine. Good luck