Sierra Denali RWD V8-6.2L (2009)
Note
Evenly push in the RED collar in order to remove the nipple.
48. Remove the brake booster vacuum hose nipple.
Installation Procedure
1. If the intake manifold was replaced perform the following steps, otherwise proceed to step 21.
Note
Evenly push in the RED collar in order to install the nipple.
2. Install the brake booster vacuum hose nipple to the NEW intake manifold.