There are two. One, each side, centered, right above the oil pan rail. They both take a 9/16ths socket, and juse a 6 point, as they will be tight. Once out, if the water does not flow, or, is flowing slow, clear the hole out with a screwdriver, as they rust over, sometimes.
The engine block coolant drain plug on 4.3 liter Chevy Blazer is located on the bottom of the engine, near the oil filter. It allows coolant to be completely drained from the block during maintenance.
Rear of the engine block, near the oil pan.
three
180.
On the engine block. where on engine block?
drivers side of engine block
on the buttom of the block Can you please be more specific? Where exactly on the bottom of the block? Near what on the block?
should be located right above the #2 spark plug wire on the pipe that comes out of the block.
There are two block drain plugs, one on each side of the block, close to the motor mounts and oil pan.
Assuming this is a 4.3 engine, remove the block coolant drain plugs. There is one on each side of the block. The passenger side is towards the front of the block and the drivers side is towards the back.
YES. If you look at the passenger side of the engine block just in front of the starter you will see a small plug that is screwed into the side of the block. That is a coolant drain plug so you can get all the coolant out of the block. Remove it and screw the knock sensor in it's place.
Every block has one (L4 or L6) or two (V6 or V8) coolant drains. Not always easy to access.