Avalanche 1500 4WD V8-5.3L (2007)
7. This step applies to the Push Down TI style connector ONLY. Release the fitting by pressing on the tab indicated by the arrow.
8. CAUTION: Refer to Relieving Fuel Pressure Caution.
Pull the connection apart.
CONNECT PROCEDURE
1. CAUTION: Refer to Fuel Pipe Fitting Caution.
Apply a few drops of clean engine oil to the male connection end.
2. Push both sides of the quick-connect fitting together in order to cause the retaining feature to snap into place.