1999 Pontiac Firebird

my haynes book only goes to 97, but should be simuler. Disconnect negative termanal from battery, if you have Delco loc 2 or theftlock audio system then make sure lockout feature is turned off. Drain the coolant romove air intake duct and clweaner raise vehichle and support it. Disconnect coolant level sensor(if equiped) you do not have a tranmissoin cooler if manuel so you can skip that step and. remove radiator panel and fan assembly. tilt fans and pull out from underneath. romove coolent lines, two big (one at top one at bottom) and two small at neck. Radiator can also be removed from bottom with a little wiggling to get lower right corner clear of refrigent lines to condenser.