2007 Chevy 2500HDMarch 30, 2014How or where do you release the tension on belt to change alternator? Keywords:2500 HDserpentine belt tensionertensioner 1 thought on “2007 Chevy 2500HD” Freeautomechanic April 1, 2014 at 7:45 am •Open the hood. •Remove the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement . •Install a breaker bar with hex-head socket to the drive belt tensioner bolt. •Rotate the drive belt tensioner clockwise in order to relieve tension on the belt. •Remove the drive belt (1) from the pulleys and the drive belt tensioner. •Slowly release the tension on the drive belt tensioner. •Remove the breaker bar and socket and from the drive belt tensioner bolt. •Clean and inspect the belt surfaces of all the pulleys. Comments are closed.