94-00 GM Diesel EFI DS Pump Diagnostic

Worn injectors (excess carbon on the nozzle tips) Buy 6.5 Diesel Injectors 4. ... engine in back up mode (you will experience an extended crank time during starting, up to 15 seconds). A bad noise suppression harness or no noise suppression harness can also cause a stalling condition. If the condition is still present replace the PMD only.

  Tips, Extended, Nozzle, Nozzle tips