The windshield wipers may not work intermittently due to a faulty wiper motor control board. Our technicians tell us that lightly taping on the wiper motor when the fault occurs should temporarily get the wipers working again. Some vehicles were recalled for this problem and some were not. You will need to check with your local dealer to find out if a specific vehicle was included.
Average mileage: 138,250 (35,000–190,000)
18 people reported this problem
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I have the same problem. They work at times and then just stop working but I can hear the wiper motor running.
mine our doing the same but i have found the problem seems to be a bad wiring connection at the motor plug.
The wipers only work on high. When turned off the drivers side will be at least 6 inches above where it should be and this is only if you are good at landing them there. When turned off they stay right where they are at that time otherwise. They have stopped working all together on many occasions. Have to get out and pull on the wiper arm, then flip the switch on/off as many times as it takes until they start up again. Very dangerous to drive on the highway when it is raining. This seems to be where they stop working the most.
I have two 1993 GMC suburbans. Both have this problem. When turned, wipers randomly do not operate, or will stop when operating, even though it sounds like the wiper motor is operating. If you slap the wiper motor, the wipers immediately start. Its random and I haven't been able to duplicate it for my mechanic