How do you change a radiator on a 1999 Isuzu trooper?

To change the radiator on a 1999 Isuzu Trooper, first disconnect the negative battery terminal and drain the coolant by opening the drain valve at the bottom of the radiator. Remove the upper and lower radiator hoses, as well as any attached clamps and electrical connections. Unscrew the mounting bolts that secure the radiator to the support brackets, then carefully lift it out. Install the new radiator by reversing the removal steps, ensuring all connections are secure before refilling the coolant and checking for leaks.