Does the 3.2 v6 CTS motor have to be pulled out of car to replace freeze PLUGS on block

SOURCE: freeze out plugs

if you can get to them they make a rubber replacement that that you put in and tighten in place with a wrench

SOURCE: does the engine have to be pulled to replace the

its a tight fit but you can go in between the motor & firewall without pulling the motor. if that dosnt work it takes half the time to pull the transmition and bell housing , get it out of your way and your home free

SOURCE: 1992 chev s10 , 2.8 v6 , leaking freeze plug

If the welsh plug is in a position where by removing several items ( manifold --engine mount etc and you can get enough space to swing a hammer to install the new plug. then it can be done with difficulty. If the plug faces the fire wall then unfortunately the motor has to be pulled . The only advantage is that it is just not the one plug because if one is rusted out the rest will not be far behind so it is an opportunity to do the lot.. IT is a good reason to always ensure that the coolant conditioner is always changed regularly and kept up to percentage required.