Water pump failure? At highway speed?

[ChaseTruck]

He said there was no leak he could see.

On our '93, the leak in the top tank resulted in a fine mist the coated the passenger side of the engine compartment - difficult to see. Only when I put the pressure tester to it could I see the coolant seeping out at the crimps.

@ChaseTruck where did you source the water pump overdrive pulley?

@Photoman