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I recently bought a 5.0 95 mustang that has a procharger supercharger on it. the car is a stock longblock with only bolt on mods , nothing internal.

I have driven it several hundred miles and it is running Ok ( though I remember these cars being faster then they are)

But at an idle the procharger rattles internally.

I have a video of it on you tube

Is this rattle at idle normal. the supercharger is suposed to be near new, and from the paperwork he gave with the car it has about 1k on it. I just changed the oil in the charger, and it didn't change the noise and I took off the intake tube to see if the shaft was loose and it is not. it appears to be the gears internally vibrating and rattleing when the engine idle is too low for the charger to be doing anything but going along for the ride.

once you add some rpm and the unit starts to work it sounds fine.
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