Q: I changed the plugs and plug wires and changed oil on my van and now it won't start

A shaking steering wheel at low speeds can be caused by tires that are out-of-round or badly worn due to some failed suspension component. Have a technician, such as our experts here at YourMechanic, check for looseness in the front...

Hey there. In many cases, whistling or whining noises can come from the belt drive system or a vacuum leak under the hood. Is your vehicle maintenance and tune-up schedule up to date? You may want to check the idle...

Using a buffer on a car's paint to get out scratches would require the use of a compound liquid to take off some of the paint surface. If you buff too much in one spot, then you will take off...

Hello - there are a couple of possible problems here: the thermostat may not be working properly, or the coolant temperature sensor (https://www.yourmechanic.com/question/temp-gauge-goes-up-and-down) for the gauge is not working correctly. A malfunctioning thermostat could allow enough engine heat for heater...

It sounds like your headlight circuit has a short to power. This will cause the system to activate without the use of the switch. The most common cause of an issue like this would be a fault in the switch...

In all likelihood, the alternator may be bad. The function of the battery is to start the vehicle. Once running, the alternator provides power for all the electrical needs of the vehicle. If the alternator fails to provide power, then...

What you are describing sounds like a dirty or faulty mass air flow sensor. The mass air flow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement) monitors air intake as it is mixed with fuel prior to being injected into the motor. This sensor relays vital...

Hi There, What you are referring to is what is called a serpentine belt (https://www.yourmechanic.com/services/serpentine-drive-belt-replacement). This is a belt that powers the majority of the major engine components. I would suggest having a professional from YourMechanic come to your location...

Occasionally, on a part of this type there are meaningful differences between aftermarket and OEM. Therefore, to simplify the diagnostics, the OEM MAF sensor (as vended by a Ford dealer) could be installed. Once you have an original equipment, genuine...