Some 2001 2.4L Sonata and Santa Fe vehicles may experience one or more of the following conditions:

1. Rough running;
2. Rough idle;
3. Lack of power at low rpm; and
4. Check engine light on (DTC P0335 crankshaft position sensor malfunction).
5. This condition may be caused by the exhaust camshaft coming out of time.

Vehicles that experience the condition described above should be updated with the new timing belt cover.

Inspection:

1. Inspect the production date of the vehicle. Vehicles produced on or after Jan. 30, 2001 are not affected by this TSB.
2. Remove the upper timing belt cover.
3. Rotate the crankshaft until the timing mark of the intake cam sprocket is aligned with the timing mark on the rocker cover.
4. Inspect the alignment of the timing mark on the exhaust cam sprocket with the timing mark on the rocker cover:
   a. ...