Squeeky belt on 2005 GMC Sierra 1500

I have replaced the surpantine belt and AC belt in Oct and both belt tensioners after the belt didnt work. After i replaced the tensioners the squeek was gone for a month but now this weekend in the morning there is a squeeky belt sound again?

by in Schaumburg, IL on December 26, 2012
2 answers 2 comments
ANSWER by on December 26, 2012
DID U USE DELCO PARTS OR CHEAP AFTERMARKET?
ANSWER by on December 26, 2012
Check belt alignment.
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COMMENT by on December 26, 2012
I didn't us GM belt tensioners but bought the best Orielly's had brand was Gates. Maybe its the belt alignment or could the idler pulley or alternator pulley be causing the squeak? Would anyone recommend a belt dressing I heard they it cause more issues.
COMMENT by on December 26, 2012
Do not use belt dressing. Replace the idler pulley and tensioner assy.