Would a bad viscous fan not allow the engine to warm up properly? It takes FOREVER for the car to warm up. After warm-up there is only slightly warm air coming from the vents.
My test: With the auto off. Pop the bonnet. Turn fan manually. Feel for a drag, which I have. Drag=shot.
next question: If I take the fan and cowl off to replace the viscous unit should I just replace the fan too. I remember reading once that the fan should also be change due to stress fractures and the fan tending to nade taking out the radiator in the process, any truth?
Its COLD I tell you. Thanks.