[-=Jeff=-]

my 90 had a bearing type noise.. I replaced the pulley on the tensioner, it helped, but noise was still there. i noticed my tensioner was fluttering too, so i replaced it.

this was July 2009, I drove 1400 miles, then had to change the Water pump, due to a leak, found out the noise was the Water pump bearings, on the car i could not tell they were going, once off I could.

then this December i replaced the Alt. bearings were bad on it too. now keep in mind when I got the car in 2007 is was too rough shape and had 60K miles. but it is possible your pump or Alt bearings might be going bad too