My 2003 chevy impala windshield wipers only work on the highest speed
Having windshield wiper/washer problems? Here are some more common problems.
The wiper motor is commonly replaced and was often not the problem. Don't replace the motor yet. maybe it's not the motor. It could be a fuse or something at the wiper switch. The wiper motor has two windings, fast and slow. The wiper switch sends a ground signal to each motor winding. More often, there are problems with the relay, or at the wiper switch, or in the cable to the motor.
Don't be too quick to replace the washer pump. The problem is often just a clog in the sprayer heads. You can clean out the sprayer holes with a needle, some have two holes, so look closely. Hope this helps.
Replace the wiper motor. It is under the wiper blades. remove the blade arms, remove the plastic bezel, remove the motor. The motor has the delay and speeds built in it.
SOURCE: 2006 chevy impala windshield wiper fluid will not work
I just fixed the wifes 2006 Impala, windshild washer. If you look at the manual, under the hood fuse panel, you will find two fused identified as windshild wiper. The one at the bottom is the washer pump. They even conviently provide a spare (10 amp) fuse just below it. swap out and ops check okay. Hope this helps.
SundogKB
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