TrailBlazer 2WD L6-4.2L VIN S (2003)
3. Remove the J 34730-1A from the pressure gage fitting.
4. Drain any fuel remaining in the fuel pressure gage into an approved container.
5. Install the fuel pressure service connection cap.
6. Inspect for leaks using the following procedure:
6.1.
Turn ON the ignition, with the engine OFF for 2 seconds.
6.2.
Turn OFF the ignition for 10 seconds.
6.3.
Turn ON the ignition, with the engine OFF.
6.4.
Inspect for fuel leaks.
7. Install the fuel tank shield if removed.