Q: Something is draining my battery.

The sun roof mechanism is most likely getting, or has gotten, corroded or rusted. In this case, it would need to be replaced. The switch contacts are loosing contact and the switch should be replaced as well. The recommended thing...

The PCM supplies power to the purple/white wire which activates the starter relay. I would disconnect that wire from the PCM, mostly likely it would need to be cut somewhere it can be easily repaired or you will need to...

Hello, thanks for writing in about your 2010 Ford Focus. This is commonly related to out of balance tires, tires with uneven tread wear (https://www.yourmechanic.com/services/uneven-tire-wear-inspection), wheels out of alignment or as you know, when ball joints (https://www.yourmechanic.com/services/ball-joint-front-replacement) are wearing out....

Hello - you are correct. If the thermostat is stuck open (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-thermostat), not allowing the engine to warm up properly, there won't much, if any, heat in the passenger compartment. However, if you are smelling coolant in the passenger area,...

Hello. If you have an automatic transmission and the vehicle will not move forward at all then most of the time this is the result of a serious internal transmission failure. It can also be caused by an issue with...

Hi there. If the check engine light is still on for the oxygen sensors, look at the description of the code to see if the sensor relates to a lean or rich condition. If the code does not, then there...

Hi There, It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement) monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on...

Hi there. Typically when an EVAP system component fails or is damaged, it will cause performance problems, issues filling the fuel tank or other symptoms with the operation of the vehicle. If you are not having these problems, it's likely...

It sounds like you may have a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator charges the battery while the engine runs by generating amperage and recharging the battery while the engine turns...