My '89 F-150 spun the serpentine belt off last night, damaging the crank pulley in the process. All the components in the train rotate freely except the power steering unit. It seems tight. Is this enough to make this happen?
The engine is running fine...not locked up or making strange noises.

Any advice appreciated.
Thanks
Buck

 

Buck,

Do you have air? I have had an A/C compressor seize up and cause this. It would only do it when the A/C clutch was energized. The clutch normally freewheels when the A/C is off.

Regards

Jean Marc Chartier

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00 F-150 XLT SC Flairside 4x4 4.6 w/5spd
Warn XD9000i, skid plates, Draw tite class III,
Rancho RSX Reflex shocks,
SmittyBilt Nerfs, Borla Cat Back
Modified Air Cleaner Outlet Tube,
Superchips

 

You should be able to easily turn the power steering pump by hand. Turn it clockwise, the way the belt would turn it.