just put on a 6 lb pully on a 2001 lightning,didnt even leave the garage with it yet,and it sounds like the bearing in the super charger is rattling or growling.or something is.what could that be?is this a normal sound when ya install it?it didnt make that noise before i installed it.truck has only 4000 miles on it.
Originally posted by webmaster It's a lower pulley you changed, right?
ya just the lower pully.in the cab at idle it kinda sounds like a electric fuel pump.but its comeing from the front part of the supercharger. i think.never noticed it befor the install.truck has only 4000 miles on it. kinda like a groweling noise,not bad,the kind of sound where ya really dont know where its comeing from.but in the cab ya can hear it at idle
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