Q: The anti-theft is always on in my 1999 Mercury Sable, can I turn it off?

Your car’s brakes are the most important safety system onboard. They’re hydraulic, which means they require fluid in order to operate. When you press the brake pedal, fluid is sent from the master cylinder through the brake lines to the...

You can choose to have your fuel efficiency reading be backlit. To control whether or not it is backlit, follow these steps: 1. Turn the ignition to On, while making sure the vehicle is completely stopped. 2. Press the Menu...

Hello. If the heater does not work I always check the coolant level first. If the coolant level for the engine is low then not much coolant will enter the heater core which results in little to no heat. If...

The P0171 trouble code (https://www.yourmechanic.com/article/p0171-obd-ii-trouble-code-system-too-lean-bank-1-by-andrew-quinn) relates to a "lean condition" and applies generally to many makes and models of cars. This simply means the air/fuel mixture is lean meaning that there is too much oxygen present in relation to the...

Hello there, a few common faults will cause your 2004 BMW 540i to have a misfire on acceleration. Without knowing what code the engine is storing I can only offer general advice. Likely causes for the car to misfire like...

Hello. An excessively high fuel trim and decrease in fuel efficiency can be caused by many things. If you have already replaced the aforementioned components then I would move on to examining the vehicle's engine management system. The fuel trim...

If you can remove fuse number 5 in the fuse box under left side of dash turns off the lights when you have the vehicle running then you have a shorted neutral safety switch on the transmission. You should replace...

Hi There, This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear, turning on AC or engaging the brakes). The Manifold Absolute Pressure...

Hi Antonio. If you're looking for information about installing or replacing a PCV valve on your 2006 Hummer, please click this link (https://www.yourmechanic.com/services/pcv-valve-hose-replacement). Gracias.