GMC 1997 Safari Owner's Manual page 274

8. Grasp the bottom of the cover and slide it rearward.
Then, lift it up and out.uf the vehicle.
Installing the Engine Cover
1.
2.
3.
4.
5.
6.
Lift the engine cover into the vehicle and slide it all
the way forward. Make sure the rubber seal is over
the latches.
Install the two bolts at the engine cover.
Put the heater duct over the engine cover studs. Push
up on the duct gently until it snaps into place.
Reconnect the electrical connectors.
Install the engine cover extension by gently
squeezing the sides and sliding it into place.
Make sure all of the fastener clips engage and the
extension fits properly in place. Replace and tighten
the two screws.
Install the two nuts to secure the extension in place.
6-18