My Nissan Frontier is making AC belt noise. What's wrong?

Answer by  thattractorguy (2970)

I believe all Frontiers have serpentine belts. Your belt may be worn or the tensioner pulley assembly may be worn and need replacement. Check these things first. If this isn't it, your A/C compressor may be failing or the clutch may be going out. Try disconnecting the belt and spinning the compressor to check for noise or binding.

Answer by  Amber40 (24961)

Well depending on what noise the belt makes it could be different problems. Most belt noise is due o a old worn belt slipping. Install a new one with the correct amount of tension. If this doesn't fix it the a/c compressor bearing may be going out.