Q: I have an 08 Nissan Xterra. There have now been a couple of times when while driving the vehicle at low speeds it shuts off

Hello, thank you for writing in. There are several reasons the vehicle may not start right away after stalling. Typically this is a sign that your engine is missing a critical component such as air, fuel, spark, or electrical power. With no diagnostic codes present, it may be that the component which has failed is not monitored by the computer. These may include the fuel pump, spark plugs, and alternator output. These components all need to be tested first, before looking at more complicated issues. Make sure that you have the correct fuel pressure available at the engine, that the spark plugs are receiving power, and that the battery cables are clean, dry, and tight. You may also want to have your battery and alternator tested, as electrical problems can often cause miscellaneous warning lights and stalling issues. Keep in mind, this testing needs to happen when the vehicle is experiencing the stalling and no-start symptoms. Otherwise you will not find the problem if it is intermittent. For more help with testing and repairs, contact ourservice departmentto schedule an appointment.