it has wing nuts on it to hold it in place, it comes off by opening the trunk and the wing nuts are in back of the taillight inside the trunk.
The PCV valve for a 1998 Monte Carlo should plug into the valve cover. Twist and pull it to remove and replace it.
take the cover off and there is two screws, take them out and that's it
You will have to remove the rear cover. the service plug is midway up on the passenger side.
How do you remove taillight cover on a T-100 toyota Truck
From the inside.
Begin by removing the radio retaining cover. Remove the radio retaining screws. Slide the radio out. Remove the wiring harness and the antenna cable from the back of the radio.
open the trunk and on the inside directly behind light you'll see at least one black spinner nut . remove it and pull away the cover . there you'll see three more spinner nuts ,remove those and pull the light fixture away from the bumper area. To remove the bulb just squeeze the plastic lock and twist and pull out the bulb.
You can get the ignition switch dash cover for the 2003 Monte Carlo at places like Auto Zone. You can also find this item online at AutoSport Catalog or on Ebay.
On the passenger side of the dashboard is your Cabin Fuse block , Remove the cover and on the inside , should be a Numeric label of the fuses and there locations
video to learn how to replace the engine gasket..upper & lower gasket for 1999 Monte Carlo.
Take the two screws out.
open the trunk. the assemble is lossened from in there.