1990 Lexus LS400 Base 8 Cyl 4.00L
my 1990 lexus ls400 is constanly over heating
If the electic fans work fine, then clean the outside of the radiator on both sides and the condenser in front. hose between all the fins and get all the leaves and bugs out of there. If it still overheats buy a new thermostat, flush the radiator, & fill with new coolant. If it still overheats BUY A NEW RADIATOR ON EBAY........