Q: Driver's side door not opening

Your car has at least one window with auto up/down functionality – the driver side. However, depending on the trim, you might also have auto up/down functionality on the passenger front window. In either instance, here’s how to use it....

While your car’s message center does provide you with an average reading for your fuel economy measured over time, it can also give you an instant reading on your fuel mileage. Press the Info button until you see MPG. The...

This code refers to a rich condition on bank 1. This means that the oxygen sensor detected too little oxygen in the exhaust pipe. A rich condition can be caused by many things like leaking injectors, a misfire in one...

Hi there, thanks for writing in. Most ancillary electrical items (like tail lights, instrument panel lights and tag lights) are actually controlled through an electrical relay box. On your Ford Expedition, there is usually a main relay control box (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-electronic-control-relay)...

The recommended diagnostic is a non-working wiper inspection (https://www.yourmechanic.com/services/wipers-are-not-working-inspection). The mechanic would determine if power is reaching the wiper motor when the steering column mounted switch is in the "on" position. If there is power to the motor, and yet...

Hi there. First check the fuel filter and see if the filter is plugged up. If your vehicle has a tank filter and not a inline filter, then check the fuel pump relay and see if it's clicking on when...

Hi there. Tampering or replacing air bag modules on cars in the United States without a license or certification is not legal. Since our mobile mechanics don't even offer this service, we're not able to offer this advice. I'm sure...

Hello, thank you for writing in. Having the two front tires is typically priority for a couple of reasons. One being the front tires support the engine and transmission, meaning they hold a majority of the weight. The vehicle is...

Your car has an electronically controlled transmission. If the controller detects a fault in the transmission it goes into failsafe mode to "work around" the problem. It might for instance skip a gear that it finds to be a problem...