Mercury Mountaineer owners have reported 1 problem related to frame rust (under the structure category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercury Mountaineer based on all problems reported for the Mountaineer.
The frame in back is rusting through. The back cross member at the rear bumper is rusted bad. It rattles all the time. Back sway bars are rusted bad.
See
all problems of the 2001 Mercury Mountaineer
🔎.