no, but you might have to pull your transmission depending on which freeze it is.
They vary. The year, make, model, engine and freeze plug location info is necessary to answer.
The transmission must be removed to access the two freeze plugs on that side. It is easier to remove the engine, but techinically, no, you do not _HAVE_ to.
where are the freeze plugs located on a 1996 buick skylard
No, it is possible to replace them in vehicle.
It is your choice. You can either remove the transmission and leave the engine alone. or pull the engine and leave the transmission alone. If your SMART you will replace all the freeze plugs in the engine.
Freeze plugs are located on the sides of the engine block to allow for the expansion of the coolant if it should freeze. Without them the engine block could crack. They do not normally have to be replaced unless they begin to leak from corrosion or external damage.
When the engine is removed from the engine compartment, and detached from the transmission, there are freeze plugs on the back side of the engine. You may be able to just disconnect the engine from the transmission, and loosen the motor mounts and lift the engine partially away to replace the freeze plugs.
Should be 1 at the front of engine 1 at the rear of engine on each side Punch a hole in the center of freeze plug and pry out
a round one that you can order online
Low engine coolant or ineffective coolant. Add or replace anti freeze
You have to remove the engine and get freeze plugs pressed in. If you use a rubber plug which have a brass face and bolt in. Remember that they are a temporary fix and will come out if your engine over pressureizes.