Legal Question in Family Law in Washington

Yes you can. If I were you, I would bring a motion to enforce the Decree of Dissolution that was entered awarding her the car and the responsibility to make the payments. Your motion should ask for a judgment plus interest based upon what you have had to pay. I would also ask for an order that the car be sold to pay off the loan or that the loan be refinanced within 30 days so that you can be permanently relieved of this obligation.

If you can, hire an attorney to do this for you. If you prevail, you may be able to get some or all of your attorney's fees awarded to you for having to bring the motion in the first place. I'd ask that those fees be paid out of the proceeds from the sale of the car, since it is unlikely your ex will be able to pay anything, since she cannot pay for the car in the first place.