One problem related to engine knocking noise has been reported for the 2003 Infiniti G35. The most recently reported issues are listed below.
The contact owns a 2003 Infiniti G35. The contact stated that the engine made ticking and knocking noises. Also, the vehicle idled too low as if it were going to shut off independently. The service engine soon indicator illuminated on the instrument panel. The vehicle was taken to an independent mechanic where it was diagnosed that the camshaft position sensor and valve timing control sensor failed due to an improper solder joint, and would need to be replaced. The vehicle was not repaired. The VIN was not included in NHTSA campaign number: 03v455000 (engine and engine cooling). The manufacturer was notified of the failure. The approximate failure mileage was 143,000.