Q: I have a Audi 2007 q7 and my epic light is on and my cars shakes a little while driving and idling a little what could I.t be

Hi there. This sounds to me as like an issue in your anti-theft system. When your vehicle has its battery changed, the power is reset. This commonly triggers the anti-theft system which tell your computer to lock up. Have a...

Hi. There are several reasons why your radio can be inoperative. The radio in a vehicle gets power from a fuse. If the fuse blows, the radio will stop working. The unit itself can stop working. This doesn't happen often,...

Electrical concerns can often times be difficult to narrow down. It appears that your Mazda may have corrosion issues with its battery cables. It is not uncommon for the battery cables to develop corrosion near the battery terminals. Corrosion tends...

The problem may be due to the ABS engaging and seeming like the brakes are releasing in the front. If you have a defective wheel sensor in the front, then this can cause this. The wheel that has a bad...

Hi there. I am assuming you are referring to the radiator cooling fan (https://www.yourmechanic.com/services/cooling-radiator-fan-motor-replacement). If it works when the AC or defrost is on and not when the engine starts to warm up, then that can be a circuit issue...

Hi there. From the description you have given, there are apparently a combination of problems with your vehicle. The fuel leak needs to be addressed first, this is a safety concern. Not knowing the area of the fuel leak requires...

It is not uncommon for an ignition coil to fail (https://www.yourmechanic.com/services/ignition-coil-replacement). Ignition coils are coated with a varnish-like insulation that becomes brittle over time after being stretched then contracted repeated as the copper beneath them expands and contracts much quicker...

Hello: In most cases, this problem is caused by a short in the ignition cylinder. It's possible that perhaps you have a grounding issue or that one of the multiple wires from the main relay are continuing to supply power...

Hi there. The valve timing controls are pressurized and operated electronically and engine oil pressure. First perform an oil change with a new filter to ensure a good clean engine. If the timing is still not right and the engine...