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Old 01-15-2000, 01:30 AM
Rocket Rocket is offline
Join Date: Jan 2000
Location: Indpls.,IN. USA
Posts: 84
Your fan clutch should have no effect on your ability to heat the interior of your car. Look into things like a restricted heater core or a failed auxillary coolant pump. It is also possible to over protect your coolant, in which case it becomes too thick and at the extreme it can even cause your engine to overheat. As far as checking a fan clutch you must bring the engine to operating temp. and then with the hood up hold the engine RPM to about 2500. The fan will noticeably change sound and speed after several minutes, this may be difficult to do outdoors in cold weather.
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