I'm going to assume you mean a serpentine belt.
Look for the idler pulley, belt tensioner under the hood, about the center.
Place a socket on the bolt holding the pulley and with a breaker bar or long 1/2 ratchet, try to loosen the bolt.
You should notice the belt tensioner will move rather than the bolt. Continue to move until enough slack develops in the belt to remove, then slowly move the tensioner back to it's resting spot.
*USE CAUTION AND THE RIGHT TOOLS*
DO NOT TRY TO PRY ON THE TENSIONER! There is alot of force there and you could easily get seriously injured.
remove the old belt and remove your trouser's belt off and put into the fan
Remove the serpentine belt, break free the fan (borrow a Clutch Fan Removal Kit from Autozone or Advance Auto Parts), remove fan shroud, remove fan entirely, disconnect hoses from pump, unbolt.
Drain the radiator. Remove the water pump belt and fan, remove the fan shroud if necessary. Unbolt the pump. Using new gaskets install the new pump. Reinstall the belt and fan then fill the radiator up with new fluid.
you don't, the fan is electric
Remove fan clutch with fan impeller. Remove A/C compressor drive belt. Remove cap from tensioning roller. Relieve tension on drive belt. Remove drive belt. Reverse procedure for installation.
it is no suh a thing is fan belt on 2002 corolla
REMOVE THE SINGLE DRIVE BELT, THEN REMOVE THE 4 MOUNTING BOLTS BETWEEN THE FAN AND THE BELT PULLEY. THE FAN MIGHT NEED TO BE WIGGLED OFF
Loosen the component slide it towards the engine to lossen the belt, remove belt. Install in reverse. If the fan is your problem it is held on with 4 small bolts, remove them and the fan. P/S you should be able to work the belt around the fan blades without removing the fan. On_mitch
Remove the fan shroud remove the radiator remove the fan there is a fan in front of the radiator fan, loosen the sway bar on that and lower it a little so you can remove that belt loosen the alternator sway bar belt should be loose... replace belt reverse to put everything back you will need a ratchet and 10mm socket keep track of your bolts. Good luck!
Drain the radiator. Remove the fan and fan shroud if needed. Remove the pump belt. Unbolt the pump and remove it. Install the new pump. Reinstall the belt, fan and fan shroud. Refill the system with new coolant.
Remove the wiring harness or the fan motor belt, depending on the year of your Chevy Cavalier. Remove the fan motor retaining bolts. The fan motor will come off.
Remove the fan belt, by loosening the tensioner pulley. Remove the fan clutch with the retaining bolts. Reverse the process to install the new fan clutch.