General Motors — Priming Fuel System
Maintenance
From a General Motors owner's manual covering: Carb 5.7L, MP 5.0L, MP 5.7L, MP 6.0L. Check it applies to your exact model before use.
Before you start
- Make sure there are no fuel leaks before closing the engine hatch.
Procedure
- Turn ignition key to ON position for 5 seconds.
- Turn ignition key OFF.
- Pause for 10 seconds.
- Repeat steps 1-3 three times.
- Crank the engine until it starts or 30 seconds elapse; repeat the priming procedure if the engine does not start.
Source: General Motors owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.