Engine May Overheat at Idle With AC On on Mercury Grand Marquis
Problem overview
The engine may overheat at idle when the AC is on. A new, upgraded fan motor and resistor may be required to correct this concern.
43 people reported this problem
17 commentsMercury Grand Marquis vehicles with this problem
11 model years affected
Average mileage: 105,089 miles
(23,000 - 170,000)
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