The tensioner has an arm with a roller at the bottom. Find the size of the socket required to get around the nut at the center of the roller (I believe the last Ford I did this on required a 16mm socket). Turn the ratchet/breaker bar (attached to the socket) counterclockwise. The arm should turn and raise the roller, which will loosen tension on the serpentine belt.
It should show in the book that came with the truck.
a T-50 star bit is needed to remove the bolt
remove the old belt and remove your trouser's belt off and put into the fan
The parts store can give you all the numbers,but it uses a serpintene belt (it has ribs) is used and the main numbers will be 475
It has a Timing Belt.
Use a breaker bar in the belt tensioner to relax tension and then remove/replace belt
How to remove and install the serpentine belt on 1991 Chevy Blazer with AC?
The 2.5 liter has a timing BELT
Release the pressure on the belt tensioner and belt should slide off pulleys
How do I remove the female seat belt assembly on a 97 ford exploer?
Remove serpentine belt. Remove pulley. Install new pulley. Install serpentine belt.
chain