The washer fluid for the rear liftgate is supplied by the same reservoir as
your windshield ( located in the engine compartment ) on a 1999 Ford Explorer
No.
The windshield washer pump on a 1999 Ford Explorer moves washing fluid from the reservoir and sprays it onto the windshield. It is capable of spraying in a constant stream or in pulses.
To refill your windshield washer fluid, you must locate the dispenser under the hood of your car. Near the oil, there should be another cap that has a picture of a windshield on it.
The 1999 Ford Explorer uses only one washer fluid reservoir for both front and rear washers. It's the one under the hood on the passenger side. The forward tank is for the radiator overflow, the rearward one is for washer fluid. There's only one washer motor, too. It runs forward for the front nozzles, and reverse for the rear nozzle.
Usually the front and rear use the same reservoir - check to see if there are 2 washer pumps on the tank
AnswerPage 150 in the 1999 Taurus Owners Manual says this: Checking and adding washer fluid for the liftgate (if equipped)The opening for the reservoir is located on the passenger side under the tail lamp.Refill this reservoir with the same fluid you use for your windshield.There's even a illustration.See "Related Questions" below for more
Under the hood in the engine compartment. The rear washer draws from the same reservoir as the front wipers and the fluid is piped to the rear.
It is in an auxiliary relay box directly beneath the air filter hose. The washer relay is th eone in the upper left hand cormer as you look down from the right fender.
STS Refill Technology was created in 1999.
"How do you replace 1999 BMW 528i washer pump?"
Facing the rear (from the rear) its on the back right hand of the trunk. Under the back side window on the passenger side.
Replace the pump. Your local auto parts store will probably have one in stock.