Q: Fluid leak.

Oxygen sensors don't work in that voltage range. Oxygen sensors range from .1 to .9 volts. When the vehicle is running normal the sensor ranges between .4 to .6 volts. The O2 voltage should change constantly going above and below...

This vehicle is equipped with a cabin air filter (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-cabin-air-filter) that filters the air coming into passenger compartment. The filter blocks debris, and in time restricts the air flow. It requires replacement at least once a year. Another possibly could...

Hi, thanks for writing in. I believe that the most likely cause of your issue would be a faulty engine mount (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-engine-mount). This seems to be somewhat of a common problem on the Ford Focus. The engine mounts are made...

Hello there, a few common faults will cause the security light to remain on and the car not to start. The most common is a worn key, faulty key transponder, security module failure, or a wiring harness fault. A qualified...

Hello, thanks for writing in. Assuming the power steering system has been properly bled, and there is no more air in the system, I suspect the pressure relief valve in the pump itself is stuck, not allowing pressure to "assist"...

This may be a sign of low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a...

The brake pedal is working to stop the vehicle, but there may be air in the controller unit causing the ABS brakes to not function. I recommend bleeding the brake system from the farthest location from the master cylinder to...

Hello - something is not right with your alternator. Unless the serpentine belt is loose (worn belt or loose tensioner) and slipping, the voltage regulator should keep the alternator charging at 14.5 volts or higher as the engine revs. It...

Hello, thank you for writing in. Unfortunately, there is not a cut and dry answer for your problem. Lightning strikes are not created equal, nor is the damage they cause. You most likely have electrical issues, rather than something mechanically...