My fan stays engaged in high. I already put a new fan clutch on. on 2003 Ford F-150

Its not running hot so I can't figure out y it stays engaged. Its killin my gas mileage and horsepower.

Asked by for the 2003 Ford F-150
Did you by chance put a standard clutch or a thermo controlled fan clutch, lf it's a new thermo fan clutch it needs to be replaced, no brained if it's a standard.