The effects of eco mode vary depending on the manufacturer, but in general, it makes some power from the car temporarily unavailable to enhance the gas mileage. Most manufacturers state the eco mode increases fuel economy 5 to 10 percent. These gains could also be realized by practicing more conservative driving in a car without an eco mode.
The Chevrolet Equinox's eco button does not affect the throttle response, but it does make the transmission shift into a higher gear at lower speeds than usual to save gas. The Dodge Caravan evens out the throttle response and, like the Equinox, upshifts more quickly. In Honda's hybrid cars, the economy mode reduces power to the air conditioning system while keeping the lowest possible engine speed. The Kia, Hyundai and Infiniti eco modes all change the transmission shift point. As an available feature, the Infiniti offers gas pedal feedback that pushes back on the driver's foot when the accelerator is firmly depressed. Several Toyota and Lexus models have eco modes that slow the accelerator response and reduce power to the HVAC system. The Nissan Leaf and Toyota Camry hybrid also reduce power to the HVAC system, and the Leaf enhances the regenerative braking in eco mode.Learn More
One of the most common causes of a grinding noise when turning is a worn out constant velocity (CV) joint, which helps power the wheels on front-wheel drive vehicles. Another possible cause is worn out axle bearings, leading to metal grinding on metal.Full Answer >
When a car sputters as it idles, this means the car is either not getting enough power or fuel. To test the problem, the driver presses down on the gas peddle. If doing so makes the car stop sputtering, there is a problem with fuel delivery. If this does not help, there is a problem with the power supply.Full Answer >
The neutral gear disengages all gears in the transmission and disconnects the transmission from the wheels, allowing the wheels to roll without using the power of the engine. It also closes the neutral safety switch and completes the circuit in the starter relay to allow the car to start.Full Answer >
Car batteries run out for several reasons: some die of old age, while others run out of power due to problems in the vehicle electrical system or lose power when drivers leave lights on, doors open, and the radio on when the car is not moving. Some car battery failures result from driver error while others stem from problems with the cars themselves. Climate affects battery longevity and operation too; batteries in cold, snowy climates might last less than 3 years.Full Answer >