2000 Hyundai Sonata Change Timing Belt

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The 2000 Hyundai Sonata 2.5L V6 engine is an interference engine. If the timing belt stretches past the scope of the tensioner, the valves will most likely hit the pistons, causing extensive engine damage. Hyundai recommends changing the timing belt every 60,000 miles or 70 months, whichever comes first. The timing belt procedure requires a special crankshaft wrench, which is available from any Hyundai dealership. It takes about three hours to change the timing belt.

[edit] Tools Used

Tools
Set of wrenches
Set of sockets
Floor jack
6-inch block of 2-by-4-inch wood
Crankshaft wrench Hyundai part No. 09231-33100
Hydraulic press
Allen wrench
Torque wrench

[edit] Change Timing Belt

  • Disconnect the negative battery cable and lay it to the side, ensuring that it does not touch metal. Remove the top engine cover using the appropriate socket. Loosen the tensioner on the accessory drive belt, push it away from the belt, then lift the belt off the pulleys. Remove the drive belt tensioner and crankshaft pulley bolt using the appropriate sockets. Slide the crankshaft pulley off. Remove the timing belt covers using the appropriate socket.
  • Place the block of wood on the floor jack. Support the engine by sliding the jack under the oil pan and raise it up enough so that the wood touches the oil pan. Remove the right engine mount and mount bracket using the appropriate sockets. Turn the crankshaft clockwise, using the Hyundai crankshaft wrench, until the crankshaft sprocket timing mark lines up with the timing mark on the block at the 1 o'clock position. Check the camshaft timing marks. If they are not lined up, turn the crankshaft over again until the crankshaft mark lines up. The camshaft marks will be lined up. The left camshaft mark (as you are looking down at the engine) is at the 11 o'clock position. The right camshaft mark is at the 1 o'clock position.
  • Remove the auto tensioner bolts using the appropriate socket. Remove the auto tensioner, then lift the timing belt off the sprockets. Insert the tensioner in the press. Press the pushrod into the tensioner body until the hole in the pushrod lines up with the hole in the tensioner body. Slide an Allen wrench into the holes to hold the pushrod in place. Install the auto tensioner. Tighten the bolts to 17 foot-pounds of torque. Check that the timing marks are still lined up.
  • Install the timing belt starting at the crankshaft pulley. Work your way counterclockwise behind the guide pulley and over the top of the right camshaft sprocket, keeping tension on the belt. Route the belt under the water pump pulley, over the top of the left camshaft, then behind the tensioner pulley. Remove the Allen wrench from the auto tensioner, allowing it to put tension on the belt.
  • Turn the crankshaft two turns clockwise using the crankshaft wrench. The marks should line up again. If not, repeat the belt installation and tensioning processes from Step 3. Wait five minutes for the tensioner to settle. Measure the pushrod. If the measurement does not fall between 0.23 and 0.31 inches, repeat the installation and tensioning process from Step 3. Install the rest of the parts in reverse order of removal. Tighten the crankshaft pulley bolt to 135 foot-pounds of torque.
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