I have a 97 u42t. I'm having a bit of trouble finding the washer fluid reservoir in my truck. I thought it was the tank in the side of the dash on the driver side but Google translate revealed that to be a brake fluid reservoir. Didn't see anything under either seat so where else could it be? Hey, so I eventually found it. I kinda forgot I asked on here. But it was under the passenger seat and I didn't notice it at first. I was looking for a blue cap and a tank with blue liquid in it. It was a white cap and clear liquid. Never would have noticed it otherwise.
