RepairPal Certified shops can diagnose and repair your 2001 Mercury Mountaineer. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
The more common thing on the mountaineer is the heater core stopping up.....feel both hoses going in and out of it to verify the temperature is close to the same. If they are not you may want to have it flushed or replaced.
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