What is the fuse # you are replacing, and is it in the Cab fuse box or engine fuse box?
The most common place for power window short is in the wiring in the drivers door loom, where it goes from the door to the cab in the rubber boot.
When the door opens and closes the wires can rub and eventually short.
Passenger door as well but it isn't opened and closed as much.
Could even be master switch or passenger switch that has the short.
here is the wiring diagram for 1998 power windows
There is a Delay Relay that needs to be "ON" before power is passed to the Master switch in the door, turning on the key turns on this relay.
So if fuse #4 in engine fuse box blows even when key is off then issue would be between that fuse and the Delay Relay, the Red/Light blue stripe wire
The delay relay allows the power windows(and radio) to work after key is turned off, when you open the door then delay relay opens, turns "OFF" power to widow switches.
Delay relay is behind glove box
Last edited by RonD; 05-12-2016 at 09:55 AM.