Changing a fan belt on a 2003 S10 V6 is a comparatively easy activity that may be accomplished in about half-hour. The fan belt is chargeable for driving the water pump, alternator, and energy steering pump. If the fan belt breaks, it might probably trigger the engine to overheat, the battery to die, or the facility steering to fail.
To interchange the fan belt, you have to a brand new fan belt, a wrench, and a pair of pliers. You must also have a buddy or member of the family that can assist you with the substitute.
