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How to Change a Nissan Frontier Timing Belt

Nissan markets its D22 and D40 pickup trucks in North America as the Frontier. A six-cylinder 3.3-liter engine with a double overhead camshaft is standard for the D22 models. The timing belt for this engine keeps the camshafts synchronized with the camshaft, enabling the engine to run smoothly. The timing belt has a limited lifetime, and typically requires replacement after 60,000 miles.

Instructions

1

Disconnect the undercover from the engine with a socket wrench. Remove the shroud, cooling fan and cooling fan pulleys from the radiator. Drain the coolant from the radiator, and disconnect the hose from the radiator. Remove the radiator from the vehicle.

2

Remove the accessory drive belts for the power steering pump, air compressor and alternator. Disconnect the spark plugs and the distributor dust shield with a socket wrench. Remove the idler pulley and bracket from the air compressor.

3

Disconnect the air intake tube from the cylinder head cover with a socket wrench. Detach the radiator hose from the housing of the thermostat.

4

Remove the mounting bolt for the crankshaft pulley, and pull the pulley from its shaft with a gear puller. Remove the front timing belt covers.

5

Turn the crankshaft clockwise to align the punch mark on the crankshaft sprocket with the notch on the housing for the oil pump. The punch mark on the left camshaft sprocket must also align with the punch mark on the rear timing belt cover.

6

Fasten the bolt for the crankshaft pulley directly to the crankshaft with a socket wrench. Disconnect the timing belt tensioner with a hex wrench, and remove the tensioner spring. Remove the timing belt from its sprockets.

7

Remove the cylinder head covers with a socket wrench, and loosen the rocker arm retaining bolts. Install the timing belt tensioner with a hex wrench, and connect the tensioner spring. Tighten the lock nut to hold the timing belt tensioner in place temporarily.

8

Align the marks on the timing belt with the timing marks on the crankshaft sprocket and camshaft sprockets. Install the new timing belt onto the sprockets with the arrow facing the front covers for the front timing belt.

9

Hold the timing belt tensioner in place manually. Loosen its lock nut with a hex wrench until the tensioner turns 70 to 80 degrees clockwise. Tighten the lock nut to hold the tensioner in this position.

10

Rotate the crankshaft clockwise with a socket wrench by several full turns, and align the timing marks again. Push the timing belt with 22 pounds of pressure between the right camshaft sprocket and tensioner pulley while you loosen the tensioner lock nut.

11

Rotate the crankshaft clockwise by several full turns with a socket wrench, and align the timing marks once again. Attach the front timing belt covers, and tighten the mounting bolts to 24 foot pounds with a torque wrench. Remove the bolt for the crankshaft pulley, and install the pulley onto the shaft. Tighten the crankshaft pulley bolt to between 90 and 98 foot pounds.

12

Install the remaining components by performing steps one through three in reverse order. Start the engine, and correct any coolant leaks.