Jeep Cherokee Repair Question
running the air will only make it overheat worse. the thing to do is turn the heat on full so the heater core can help cool the coolant. i know it sounds like a joke but it works. sounds like a water pump going bad of a cracked waterjacket in the motor block. if the car still overheats after 25 mph, try knocking the junk out of the fins in the radiator and air cooling fins at the front of the car with a water hose with high pressure. also check the cooling fans and make sure they are working.
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