Two problems related to electrical system have been reported for the 1997 Mercury Mountaineer. The most recently reported issues are listed below.
I was at a gas station making a purchase with my disabled mother. We left the store, and got into my truck. I started my truck and proceed to dive towards the exit of the gas station when I smelled something like burning rubber. I said to my mother that something smelled funny and then looked and saw a thin steam of smoke coming up from in between my legs. I parked the truck and jumpers out leaving my om in the car. I then saw a fire inside of the metal track in which my seat moves mechanically underneath my seat, where the wires are. I ran into the gas station panicked and asked the attendant for a fire extinguisher, to which he replied " no, I don't know I don't have one" and did nothing. So I ran back outside to my truck where my mother was having trouble exiting my truck as she has anxiety and health issues. She finally got out and a tow truck that was driving by, saw the smoke getting heavier and flowing out of my truck, he stopped and out the fire out with an extinguisher. The flames were coming through my seat and I was at a gas station. I was terrified. I have ptsd and this hasn't helped my sleep at all. Also, we were at a gas station and as you know, fire is very dangerous at a gas station. We could've been seriously hurt or worse.
Electrical problems.