Nissan Xterra turns over but does not start, repeated distributor failure issue on Nissan Xterra

Some Nissan Xterra owners report experiencing issues with their vehicles turning over but not starting, often linked to repeated distributor failure, particularly in older models like the gen1 Xterra. These owners have noted that despite replacing components such as spark plugs, distributor caps, and rotor buttons, the underlying issue may still be related to the distributor itself. Potential causes for this failure include problems with the camshaft sensor, coil, or faulty wiring, as well as computer issues. It is advised that owners use genuine Nissan distributors, as aftermarket options may present problems due to undersized cam sensors. Additionally, some users have reported that checking for play in the distributor shaft and considering other issues, such as a malfunctioning Mass Airflow Sensor (MAF) or significant vacuum leaks, can be crucial for diagnosis. Overall, the recurring nature of these problems highlights the importance of thorough diagnostic steps to effectively address the situation.