One problem related to gasoline engine has been reported for the 2004 Nissan Titan. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Nissan Titan based on all problems reported for the 2004 Titan.
Gas tank "spews" gas at you when filling. The tank has been replaced and still does this. The brakes "judder" and cause the vehicle to shake. They have been repaired three times and are still not correct. Nissan refuses to admit this is a significant safety issue. There are technical service bulletins on the brakes.