How do you adjust the fan belt tension on a 1999 Isuzu Vehicross?

If the fan fell off the water pump or an idler is most likely worn.One belt drives all components at the front of the engine the tensioner is on the passenger side of the engine above the alternator but you need to route the belt correctly. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online