how do i replace fan speed control resistor in a 2005 chevy trailblazer on 2005 Chevrolet Trailblazer

No air flow from front vents plenty of air flow in rear vents.Thanks Jeff

Asked by for the 2005 Chevrolet Trailblazer
2 answers
you could have a blend door problem
does the frt blower have all speeds,if so you have a blend door issue most likely