I have a 1997 4.2L and im getting a constant squeaking sound coming from one or more of the pulleys I can't identify a specific one. Does anyone else have this problem and/or do you have an idea to get rid of it? I tried some wd-40 as a start.

 

i had the same problem it ended up being my tensioner pulley. i had a squeak and my belt was pretty shot one day so while changing the belt i realized the tensioner was seized up(i assume spring inside got to rusted) sprayed the living crap out of it with some pb blasters(there was a little hole in the bottom) and worked it in by moving the tensioner back and forth(as if youre changing a belt) worked for a while squeak came back after winter replace the whole thing and now its gone. its worth a shot and easy diagnosis with some penetrating oil.

 

thanks! ill try it out this weekend

 

yeah that was my deal too... cheep fix maybe 100 bucks