There are 1 owner-reported fuel system complaints for the 2008 Mercury Mountaineerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
JUST NOTICED A SMALL GAS LEAK HAPPENING OVER THE PAST WEEK OR SO. GAS JUST INTERMITTENTLY DRIPS BEHIND LEFT REAR WHEEL REGARDLESS OF WHETHER THE TANK IS FULL OR PARTIALLY EMPTY. CANNOT SEE WHERE THE LEAK IS COMING FROM. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026