Begin by removing the retaining ring at the top of your 2001 Chevrolet Monte Carlo ignition switch. The ignition switch barrel will slide out. Remove the wiring harness from the end of the ignition switch. Reverse the process to install your new ignition switch.
1995 Chevy Monte Carlo has front air bags and has special tools to remove them. It is about a 7 hour job to remove a dash from this vehicle but if you insist on doing this start with dropping the steering column.
Remove the headlight connector from the back of your 2002 Chevy Monte Carlo headlight. Take hold of the lightbulb, push in and turn at the same time, to remove. Reverse the process to replace the new headlight.
Remove the water supply hose from the top of your 2003 Chevy Monte Carlo thermostat housing. Remove the thermostat housing retaining bolts. Lift the old thermostat out. Drop the new thermostat in and reverse the process.
There will be no 2007 Chevy Monte Carlo. The Monte Carlo has been discontinued and 2006 was the last production year. There are 2007 Monte Carlo's. They may have been made in 2006 but there are 2007 models.