My 98 impreza just pumps from the front washer tank to the back
Same place as you fill the front washer fluid. There is only one reservoir.
The rear washer fluid come from the windshield washer fluid reservoir on your 1999 Ford Expedition ( according to the owners manual )
all the washer fluid comes from the same tank
To fill the washer fluid for the rear windshield on a Chrysler Pacifica, locate the washer fluid reservoir under the hood. The reservoir typically has a cap marked with a windshield symbol. Open the cap and pour in the washer fluid until it reaches the appropriate fill line. Close the cap securely after filling.
It is pumped in from the front washer reservoir.
On a 1999 Ford Expedition : The washer fluid for the rear liftgate is supplied by the same reservoir for the front windshield ( located in the engine compartment )
The 2009 Ford Flex draws its rear washer fluid from the same reservoir as the front.
There is only one Windsheild Washer fluid reservoir that serves both the front and back.
the rear washer pulls from the front...fill the front end and the rear should work.
You fill the reservoir under the hood.
By filling the fluid container under the hood. There are two motors attached to the underside of the reservior. One for the front winshield washer fluid, and one for the rear.
The rear washer feeds from the same reservior as front, if you look you have 2 pumps in reservior.