1999 Acura TL - WIPER BLADES HIT HARD ON BOTH SIDES, IS THERE AN ADJUSTMENT OR JUST REPLACE THE WIPER MOTOR

might be someone took the whole arm off to paint em or whatever so while they are in the off position check to make sure they don't need a quick adjustment for example if they are flat/level with the windshield lower seal if they are than you got the wrong size blades if they are off a little than remove clip holding the windshield wiper arm and slide off of the cog and move it a couple teeth till its flat than check your work by turning the wipers on if they aren't perfect than keep adjusting till they are on both sides

weak or faulty wiper motor, or wiper motor under heavy load, clean out snow ice and debri then retry wipers.

the wiper control arms bushings are worn out and need replaced..

bent/broken wiper arms under the base of the windshield..remove the vent cover and service/replace broken parts.

if you hear the motor running but they are not moving first check the nuts on the bottom of the arms if they are tight remove them the the cowl panel and look at the linkage under the panel for the rods being off if there ok check the nut on the motor

wiper nut and slot is damaged.

at the base of the wiper blades there is a nut that holds the wiper arm to the linkage it sounds like the nut is loose tighten the nut on each one and see if it fixes it if it doesnt fix it then it would be in the linkage but i believe it's the nuts

Adjustment....There is either a cap on the wiper assembly arm or a small allen nut.

with a cap,take a small screwdriver and pop off the cap, there is a locknut there,loosin it,raise the blade up higher,tightin nut.

Allen screw,loosen raise blade and tighten.

Remove the wiper blades then remove the cover and you will find that the linkage has come off the motor.Replace the linkage or fit a new one.Hope that was helpfull.

you may of fitted the blades when the wiper motor wasnt in park

ok remove wiper arms turn ignition on turn on wipers then turn of by wiper swicth not key motor will stop in park position fit wiper arms in positon try and your done