1995-2002 Toyota 4Runner 3.4L Timing Belt/ Water Pump Replacement

Begin by removing the fan cover which has four 10mm bolts .

Remove the four 12mm nuts on the fan using a wrench .

After removing the bolts on the fan and fan cover, take out the fan cover and fan .

Remove the pulleys with the four 8mm bolts .

Loosen up the idler pulley by getting underneath the car and removing the 12mm bolt at the bottom of the idler pulley .

On the bottom of the idler pulley, loosen the 12mm bolt .

Remove the 12mm bolt with a washer from the idler pulley .

Remove the idler pulley .

Take off the belt .

Remove the nut that holds the pulley in place, which should be torqued down to 250 lbs .

Using a 19mm wrench and a pipe, remove the nut and then remove the pulley .

Take off the spark plug wires .

Remove the ten 10mm bolts on the timing cover .

Take off the timing cover .

Loosen the bolts holding the water pump and remove the water pump .

Line up the notches on the camshafts to set the timing before removing the belt .

Remove the bottom cover by taking off the two 10mm bolts .

Line up the camshafts by rotating the big pulley until the notches line up .

Remove the old timing belt .

Remove the old water pump and thermostat housing .

Scrape off the old gasket from the water pump housing and block .