Hi John Gilbert,
Power steering pump pulley dropped off? Or is it just the belt was displaced?
The knocking noise lower down is from the crankshaft pulley. The outer ring of the pulley sits on a damper and the damper has detached itself from the main pulley. The A/C should be ok.
Get the crankshaft pulley replaced but you need a special wrench or a very high torque impact wrench, the pulley is torqued at 150 ft/lbs.
Timing belt should not be affected, unless the timing belt cover is badly damaged which might leave some debris in the path of the belt and cause the teeth to skip.
Tuesday, July 1st, 2008 AT 9:39 AM