Q: Engine oil expired.

We need to determine if the engine is turning over or if nothing is happening when you turn the key. If it is turning over but not starting then you will need to check the ignition system or the fuels...

The Charging System warning light is located on the instrument panel, and is connected to the battery. When the battery is not charging properly, the light will illuminate. Tip Like all warning lights, the Charging System warning light briefly illuminates...

I am not really sure what you mean by the "fuel backup". If your vehicle has an electronic throttle body, then this can certainly contribute to this problem. Other things like fuel pressure, bad catalytic converters, cam and crank sensors,...

Thanks for writing in about your Mercedes Benz CLK430. This is a common problem as vehicles get older. This type of fault is called a parasitic draw and occurs when one or more component does not shut off when the...

This is likely a sign of low transmission fluid. I would recommend checking the fluid first to see if this does not fix your issue. If this does not solve the problem, this may be a faulty transmission control solenoid....

The next step would be to do a proper full pinpoint test indication in the troubleshooting charts for the code that you got. This test will check the wiring, connections, ECM connections and the ECM itself. If you do not...

Hi there. There could be a fuel volume issue (meaning the amount of fuel is not adequate) or the MAF (mass air flow) sensor is dirty or not working. Check the fuel pressure and make sure that there is at...

Code P0335 relates to the camshaft position sensor not transmitting a proper signal to the PCM. The camshaft position sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement) measures the rotational position of the camshaft and transmits that information to the engine control computer. To determine which...