When the check engine light comes on, it means that a vehicle system, such as the ignition, fuel injection or emission control, is not operating properly, even if the vehicle appears to be running normally. A glowing check engine light doesn’t mean you have to immediately pull the car to the side of the road, but it does mean you should get the car checked out as soon as possible. Ignoring the warning light could result in costly repairs.
Some common malfunctions that can cause the check engine light to illuminate include a faulty oxygen sensor, mass air flow sensor, or spark plugs and wires. If the light flashes, the condition is more critical and must be checked immediately to prevent severe damage, which may include catalytic converter damage.
When scheduling service, make sure the automotive shop that examines your vehicle has professional technicians who are trained and certified in diagnosis and repair. The technician will connect your vehicle”s computer system to a diagnostic scan tool, which will provide trouble codes indicating why the check engine light was activated.
While the diagnostic tool is connected, the technician can analyze data streams such as the idle speed, throttle response, engine temperature, fuel system pressure, manifold vacuum, exhaust emission levels and many other key indicators. Once the problem is fixed, the car”s computer is reset to initiate the computer’s release process. The technician should then advise you of the proper course of action, potential warranty coverage, further testing if necessary and recommended repairs.
This is something that confuses a lot of people. Basically the battery is used to start the car, not to actually run it. Once the car has started, the engine starts burning petrol and powers the alternator. It’s the alternator that provides electricity to the lights, not the battery. So as long as the car is running, car batteries don’t really do much. It’s only when the car is sitting and you leave the lights on, that’s when the battery is working, and that’s why it will drain if you leave it sitting for a short time.
Probably not. Just driving about after jump-starting your car won’t make your battery charge up again. You need to take it to a professional and have it charged up properly. With a little luck you should bring it back to full life and have no more problems with it.
Absolutely, yes. If your car battery is running flat, then the alternator will have to work harder to compensate for it. The harder it works, means the more the engine has to work to power it, and the harder the engine works the more fuel you use.
Another yes! Car batteries will last a few weeks, and if your car is sitting in a garage, or even worse, outside, for long periods of time, the battery will eventually go flat. Car batteries lose charge because even if the car is switch off, they still keep the vehicle’s electrical system going. This small amount adds up over time, eventually draining the battery.