Q: Interior dome light, over rear passenger seat, flashes when brake pedal is applied. This problem just started about 30 days ago.

Maintaining the right air pressure in your car’s tires is vital. Your tires can lose 50% of their pressure without appearing flat, but they will wear poorly. Low tire pressure creates excessive wear on the edges of your tires, and...

It is possible that your crank sensor may be at fault for your vehicle not starting. If the crank sensor goes bad (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement) the engine can not fire the spark plugs or the fuel injectors. This is a pretty common...

Hello there. There are a few potential causes for why the car would have charging faults even after the alternator is replaced (https://www.yourmechanic.com/services/alternator-replacement). The most common would be the battery cable (https://www.yourmechanic.com/services/battery-cable-replacement), shorted harness, battery (https://www.yourmechanic.com/services/battery-replacement), or a failed alternator...

The codes you are getting may be directed to the O2 sensors but can be caused by a computer system or fuel system malfunction. You should get each code diagnosed to find out what is the cause of the rich...

This can happen for a wide variety of reasons. Unfortunately, without additional detail this cannot be diagnosed properly without inspecting the car. I would recommend having a certified expert, such as one from YourMechanic, come to your home to diagnose...

In the future, please include the model of Nissan and the motor size. This way we can be more certain we are giving you an accurate answer. The P0420 code has to do with the catalytic converter. It will either...

Hi there. Put the key into the ignition and turn it on. Then press the lock button on the key fob and turn off the ignition. Then turn on the ignition and press the unlock button on the key fob...

Hello, Engine mounts and transmission mounts are distinctly different components, although they both serve to achieve the same purpose which is to prevent excessive vibration. Engine mounts (https://www.yourmechanic.com/services/engine-mount-replacement) are more substantial in nature as they are designed to absorb vibration...

Hi There, You may have a failing voltage regulator that could be allowing the alternator to supply too much or too little amperage to the battery resulting in the battery never maintaining a consistent charge as it is designed to....