These engines are "interference" engines and if the timing belt goes, then the valves or pistons will be damaged. The timing system is somewhat complicated and any mistake has the potential to severely harm the engine, thus this procedure should only be done by experienced personnel. This is especially important if one is not very sure of one's abilities in the tasks required for the mastery of the skill. First unplug the cable from the negative terminal of the battery, and then remove the air cleaner duct as well as housing for 1998 and later models. Then, pull off the crankshaft pulley, the drivebelt(s) and the spark plugs, the engine cooling fan, as well as the fan shroud. Remove the fan by removing one bolt and two nuts from the pulley support. For 97 and earlier models, unhook the oil cooler line; for 98 and later models, take out the power steering pump. Take off the timing belt covers, as are the bolts of different types and measures for further installation. Start to turn the engine until the groove on the crankshaft sprocket is in line with the horizontal mark on the oil pump body while the camshaft sprockets are in position with the two marks facing each other. Liberate tension that is put on the timing belt by loosening the tensioner then, proceed and take the belt. Check the timing belt for signs of cracking, delaminated or wear and if it is worn, then replace it. Prior to starting the engine turn the crankshaft at least two full turns and feel for any drag that will tell you about the valves and the pistons. For 1998 and later models set the camshafts to the proper phase with the crankshaft turned clockwise and lined up with the sprockets. Before installation of the timing belt you need to release the hydraulic tensioner and to make sure that all the sprockets are correctly aligned. First of all, put the belt on the crankshaft sprocket with the outside writing and with the arrows facing clockwise. Pass the belt on the idler pulley and further round the camshaft sprockets making sure that the marks match. Hydraulic tensioner is then fitted and a slight rotation of the crankshaft is made then the hydraulic tensioner does the rest of the work. Twist the crankshaft counterclockwise and anticlockwise two full rotations and feeling for any level of resistance. Last of all, follow the steps that were mentioned for removal but in the reverse order.