GM 84518407 Pump Assembly, Wswa

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To replace the windshield wiper motor you have to pry off the wiper trim caps, remove each wiper arm retaining nut, locate the relationship between the wiper arms and shaft so you can reinstall them later and then remove the wiper arms. Subsequently, remove the respective windshield wiper retaining nuts and washers and reflect the position of every wiper-arm referring to its shaft. Disconnect the windshield wiper motor connector, then disconnect the cowl cover and then take out the three screws that are usually hidden at the back of the wiper motor and linkage assembly of the cowl. Raise it higher out of the cowl area and clip the linkage off the wiper motor's crank arm. Loosen and pullout the nut connecting the actuator arm to the motor shaft; note the position of the crank arm relative to the motor shaft before pulling out the actuator arm, and the three motor mounting bolts. Next step is disbudding of the motor mounting screws and then, the motor can be pulled out. To gain access to the rear wiper motor on the SUV models, the liftgate interior trim panel, the wiper arm, the nut on the wiper motor pivot shaft and two nuts holding the wiper motor to the liftgate must be removed. Slide the wiper motor back from the liftgate and remove the electrical connector, then to reassemble reconnect and tighten the pivot nut to 80 in-lbs. This is done on the washer fluid reservoir by first removing it, disconnecting the electrical connector and then emptying it before finally pulling our the washer pump with a twisting motion. If needed, use old rubber grommet; if not, replace the new one with that brought along with the new pump. The grommet must be inserted and the pump positioned into the reservoir with a slight twist and to do this silicone spray lubricant must be applied. To service the windshield washer nozzle, the cowl panel is taken off, followed by twisting the washer hose counter clockwise on the nozzles, then pressing down the locking tabs on the two sides of the nozzle and then pulling it out of the cowling to be refitted in the reverse process. Screw the nozzle with a sewing needle for providing the best spray pattern on the wind shield. This is a multi-function switch from which the wiper switch is derived, and the switch on the steering column shall be withdrawn and plugged in a particular manner.

To remove the wiper motor transmission, start by taking off the wiper arm dust caps and nuts, marking the relationship of the wiper arms to their shafts, and then removing both wiper arms. Next, take off the cowl cover, disconnect the electrical connector from the wiper motor, and remove the mounting bolts of the windshield wiper motor transmission assembly before taking out the assembly itself. The wiper motor and transmission should be removed as a complete unit, with installation following the reverse order of removal. For the wiper motor, mark the transmission drive link arm to the motor shaft, carefully pry the transmission drive link arm off the motor crank ball stud, and then remove the motor mounting bolts to detach the motor from the wiper transmission, again reversing the process for installation. When dealing with the windshield washer fluid pump and reservoir, if working on a 2015 or earlier model or a 2016 Malibu Limited, remove the left-side inner fender liner; for a 2016 or later model (excluding Malibu Limited), remove the front bumper cover. Place a drain pan under the washer fluid reservoir to catch any spills, disconnect the washer hoses from the pump, and then disconnect the electrical connectors. The washer pump or low fluid level sensor can be removed by pulling and twisting it out of its grommet, and always install a new grommet when replacing the washer pump. Remove the filler neck from the washer reservoir by pulling it upwards, take out the fasteners securing the washer reservoir to the chassis, transfer components to the replacement reservoir as necessary, and complete the installation in reverse order.