The 2002 Jeep Liberty takes 19" replacement windshield wiper blades on both sides front.
The 2002 Jeep Liberty rear wiper blade is unique to Jeep. You'll probably have to get the part at the dealer and may be able to ask for the install procedure.
The 2004 Jeep Liberty has a special Jeep rear wiper blade that you have to go to the dealer for. When purchasing the wiper, ask the dealer for the replacement instructions. There are aftermarket options available for the front however. See sources and related links below.
Your windshield washer fluid reservoir is low.
how to change the windshield wiper motor in a 2000 jeep wrangler
If it is a standard transmission you have a hydraulic clutch and on the drivers side , under the hood you will se the windshield wiper linkage just below the windshield . There is a fluid reservoire under it . It is kind of tuff to get to . But it has a black cap and is kinda tucked in.
You can try Quadratec.com, Rockauto.com, or your local jeep dealer
Where is the wiper motor located on a 1989 jeep wrang ler
Where is the windshield wiper relay located on a 1996 grand jeep Cherokee
The 1994 Jeep Grand Cherokee takes 20" replacement windshield wiper blades on both sides front and a 10" or 11" wiper on the rear.
I just bought one at the dealership for my 2002. The size is eleven inches and the cost was (ouch) $14.95.
Go to wreckers yard and see if he has any.
The 1988 Jeep windshield wiper motor is located on the firewall in the engine compartment. The wiper motor will be in the center of the firewall.