Mercury Marquis Repair Question
Asked on May 7, 2007
Fan clutch
1995 Mercury Grand Marquis 4.6 83000 miles.
Since the clutch was replaced by a repair shop it is engaged for the first five minutes while the car is on fast idle,(67 degrees F ambient) makes a terrific racket, after about five minutes the clutch torque decreases and the engine sounds normal.
My question, What is the torque / temperature relationship of the fan clutch as the engine warms up ?
It seems the fan should be off during initial warm up.
Since the clutch was replaced by a repair shop it is engaged for the first five minutes while the car is on fast idle,(67 degrees F ambient) makes a terrific racket, after about five minutes the clutch torque decreases and the engine sounds normal.
My question, What is the torque / temperature relationship of the fan clutch as the engine warms up ?
It seems the fan should be off during initial warm up.
Asked by davemcleod007@verizon.netAnswer
Replied on May 8, 2007
Works on bi-metalic spring...like an old choke thermostat...the hotter it gets the tighter it winds and the more power to the fan.