radiator drain valve is located at the bottom of the radiator, there is an access hole through splash guard.
The radiator Petcock is located on the Driverside of the radiator at the bottom, if you remove the splash guard you should be able to see it.
Look at the bottom or the rear of the radiator Take off the splash guard for easy access to the drain plug.
the diagram you are looking for is on the fan guard connected to your radiator
remove 7 bolts to take fan guard off and start removing the lines off the radiator and give it a tug and should come out mine did
take tire off then take mud guard off then take bumper clips off top and bottom then you can reach the radiator drain plug easier then from the top. it is located at the very bottom of the radiator.
Drain plug for the radiator for Mazda Tribute 2001 is located on the right side bottom of the radiator. You'll need to remove the right side mud guard to be able to access it.
It is located (if you face the front of the car) on the bottom right. it will drain straight down to the ground and you have to unscrew it from the back of the radiator. it is covered by the plastic scuff guard and sits right on the radiator frame.
You have to remove the long plastic rock guard underneath the front end in order to see the radiator drain cock. It usually has a winged threaded plug that you can loosen for the collant to drain out. Get a flashlight underneath or feel for it. It is at the bottom corner of the radiator, driver side.
If needed there is a diagram on the top of the radiator fan itself. Rather on the top of the guard next to the radiator.
It's on the left hand lower corner of the radiator. To access it, you'll need to remove the plastic guard underneath the car. You should be able to see the drip hose of about 10cm long sticking out.
(2003 Frontier) From beneath the truck, pull back the leading edge of the rubber splash guard that is below the radiator (it is held in with push pins and 1 Phillips screw). Once this is pulled back you can see the bottom of the radiator. In the center there is a plastic plug with a Phillips head. This is the drain plug. Unscrew it with a screwdriver and the radiator will start to drain.