bottom driver side of radiator
It's on the right bottom side of the radiator facing the engine.
Coolant drain plug is on the bottom of the radiator. You turn the knob and watch out. You need a wide drain pan not an oil change pan.
The radiator drain plug for a 2003 GMC Sonoma truck is typically located at the bottom of the radiator on the driver's side. It may appear as a small plastic or metal plug that can be turned by hand or with a tool. To drain the coolant, ensure the engine is cool, then open the drain plug to allow the coolant to flow out into a container. Always remember to properly dispose of the coolant afterward.
At the very bottom on the far left side (driver) you have to crawl under the truck to find it
Bottom of radiator, or possible on the lower hose connection.
Look at the bottom or rear of radiator
on the bottom of the resivoir tank that is attached to the radiator
It is on the bottom of radiator but you will probably need to remove the two piece shroud to get at it, unless you can get it from under the truck. Sometimes its easier to remove one end of the lower rad hose.
It screws out.
Generally on the bottom of the radiator.
Standing in the front of the truck, It will be on the inside of the bottom right corner of the radiator.
To drain the antifreeze from a 1992 Isuzu Pickup truck, start by ensuring the engine is cool and then locate the radiator drain plug at the bottom of the radiator. Place a drain pan underneath, open the drain plug, and allow the old antifreeze to completely drain out. Additionally, you can remove the lower radiator hose for a more thorough drainage. Once drained, replace the drain plug or hose and refill with fresh antifreeze.