Wiper motor installation buick century

Windshield wiper motors can fail, but prior to replacing the motor, the mechanic will check its power supply. There is an internal switch in the wiper motor that keeps the motor powered after you have shut it off to ensure the wipers park in the right spot.

If that switch fails, the wiper motor must be repaired or replaced. Erratic or slow wiper operation. If the electric motor or the transmission have worn excessively, you might experience erratic, intermittent, or slow wiper operation. Grinding or clunking noises. Excessive wear in the motor transmission or wiper linkages may cause noise. A mechanic will determine the cause of the noise before performing repairs.

How do mechanics replace the windshield wiper motor? Remove the cowl and any covers over the wiper motor and transmission assembly. Remove the plug harness to the motor and disconnect the wiper transmission arm from the wiper motor.

Remove the bolts holding the motor and transmission assembly to the body of the car. Install the new motor. The plug harness is usually keyed so it can only be inserted in one direction. If not, the proper polarity must be observed. Bolt the motor to the car body. Cycle the motor several times by turning it on and off to establish the park position, then re-attach the linkage transmission assembly to the wiper motor. Install all covers, cowling, and so forth and test operation of the motor on a wetted glass only.

Is it safe to drive with a windshield wiper motor problem? When replacing the windshield wiper motor keep in mind: Never turn on the wipers if the windshield wiper blades are frozen to the windshield or their path is blocked by snow or ice. When the wiper motor is replaced, all the linkages in the wiper system should be lubricated. The rubber inserts in the wiper arm have a lifetime of about 1 to 2 years. Replacing the inserts regularly will make it safer to drive in adverse weather.

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Walter 46 years of experience. A Phillips screwdriver will facilitate this procedure. Lift the cowl out of the vehicle and set aside. Detach the wiper gear arm from the windshield wiper motor drive arm. If it is attached by the nylon snap, then insert the tool between the gear arm and the motor drive arm, twist and it will come off. If it does not use the nylon snap, remove the nut securing the wiper drive arm to the wiper and leave the gear arm attached to the drive arm.

Pull the drive arm off the motor. Disconnect the electrical plug on the wiper motor. Remove the three bolts securing the motor to the firewall and remove the motor from the vehicle. Reverse the procedure to install. The drive arm is slotted so that it will only go on one way. If the drive arm was not removed and it had a nylon snap, then once the motor is installed, simply use the pliers and snap the gear arm on the drive arm.

Don Bowman has been writing for various websites and several online magazines since