Do your sun visors droop down and tightening the Phillips-head screw has no effect? There are two possible reasons for this. First you'll need to determine if the plastic sleeve or the pin that is the problem. Remove the sun visor and test the pin that it mounts to. If it is rotating in the base that's bad. It should not rotate. If the pin does rotate, the entire Sun Visor Support will need to be replaced. If it is solid, then most likely the plastic sleeve is bad. There is a plastic sleeve inside the sun visor that is tightened with a Phillips-head screw against the pin to hold the sun visor in place. If this sleeve is broken the sun visor will not hold its position properly. This pair of sun visor sleeves will be the solution to those drooping visors.