I have a 95 Serria 2500 with the 6.5 Turbo. The problem is that when I start it kicks over fine, runs perfect for 5 seconds then stalls (just like I turned off the key). Then I have to crank for 10-15 seconds before it will catch again. Normally the second time it stays running.

I have tried the following...1 the check valve was bad on the lift pump so replaced whole pump. 2 replaced fuel filter.

Possibilities...Injection pump went south again!!! 2 fuel cutoff selonoid. 3 injuection pump module..

Any other thoughts or idea's. I dont want to just start replacing parts and rack up the bill.