Windshield washer pump
- Thread starter Mike D
- Start date
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B
bedrck46
Mike try to disconnect and reconnect the connector and clean the contacts
also check the fuse and see if that helps before you remove the pump
also check the fuse and see if that helps before you remove the pump
B
bedrck46
It appears that the front and rear depend on the relay for both. The following was copied from the service manual
Washer System
The windshield washer and the rear window washer are activated by the internal wiper motor modules when it receives a ground from the multifunction switch between the washer inputs. Depending on the correct ground, the internal wiper motor modules activate either the windshield washer or rear window washer relays (internal) by grounding the respective relay coil. When either module is activated, it connects voltage to the washer pump while the deactivated module provides ground to the washer pump. In this manner, voltage polarity is reversible to achieve directional change of the washer pump and washer fluid.
If you removed the complete rear assembly then you most likely removed one of the relay modules
Washer System
The windshield washer and the rear window washer are activated by the internal wiper motor modules when it receives a ground from the multifunction switch between the washer inputs. Depending on the correct ground, the internal wiper motor modules activate either the windshield washer or rear window washer relays (internal) by grounding the respective relay coil. When either module is activated, it connects voltage to the washer pump while the deactivated module provides ground to the washer pump. In this manner, voltage polarity is reversible to achieve directional change of the washer pump and washer fluid.
If you removed the complete rear assembly then you most likely removed one of the relay modules
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Hamfisted
Full Access Members
Yes. Easy repair. Pull the washer tank out, the washer pump assembly just pulls out of the tank. Reconnect the lines and put it all back. Takes about 15 minutes. The washer motor is polar. It'll spin both directions. There's a check valve there in it's base that divides the two outlets, one to front, one to the rear line. It just wears out. No rhyme or reason. Some people put detergent additives in the washer fluid and that'll wear it out a little quicker. But overall you get about ten years out of one. Motorcraft part number is WG-312 and they're about $25 from Rock Auto.
-Mike
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