Q: Car won't start

You might want to try watching my video "How to Fix a Car That Idles Poorly (https://www.youtube.com/watch?v=eQpPcdvSBks)." You just take the plastic plenum that goes from the air filter to the intake and get some throttle body cleaner. Spray the...

Realize that, at that age, those things can get worn. First check for vacuum leaks. If you don't find any vacuum leaks, then try and have the fuel injection system cleaned (https://www.yourmechanic.com/article/how-to-use-a-fuel-injection-cleaning-kit-by-ed-ruelas). A lot of times, the cleaning would help....

Wow! Very disturbing issues to experience, especially the electrical smoke with your family in the vehicle. Based on what you've told me about you 2998 BMW 740i, this is not going to be a quick one to diagnose and repair....

Hello. This may be potentially related to the mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) or throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement). Initially, it may have been a faulty O2 sensor (https://www.yourmechanic.com/services/oxygen-sensor-replacement), but now since that has been replaced, that part of the system...

Hello. Most of the time this occurs when the actuator in the transfer case fails. If the actuator was not when you went through the puddle then that could cause it to fail from the sudden change of temperature. This...

Hello. Brake failure can happen for a number of reasons. The most common is lack of brake fluid. If there has been an ongoing brake fluid leak, the vehicle would have set off the warning light once the level got...

Hi there: The wrench light is service light indicator that alerts the driver that maintenance or service is due for a component. Most of the time, scan that Auto Zone will complete uses a basic scan tool, which does not...

It sounds like you may have a faulty blower motor potentially drawing too much power from the resistor causing it to burn itself up. As you know, the individual blower motor resistor (https://www.yourmechanic.com/services/heater-blower-motor-resistor-replacement) inside the pack are usually wire wound...

Hello, This should not have caused any damage and is generally not something to worry about. To the extent you continued to drive it this way, for very long the un-burnt fuel that is pumping through the non-firing cylinders may...