CarsDirect identifies three of the most common problems that cause a car to switch off while a person is driving: broken or worn vacuum hoses, faults in the fuel intake system or an electrical wiring problem. Any one of these issues may cause a car to shut off randomly, but by following some basic troubleshooting steps, drivers might be able to pinpoint the source of the problem.Know More
Vacuum hoses maintain the temperature and pressure around an engine. Over time, they become cracked and worn, which can cause the engine to stall. A vehicle's fuel intake system pumps fuel into the engine. If it gets clogged or starts to leak, an insufficient amount of fuel can cause the engine to shut off without warning. Finally, the vehicle's electrical system provides the spark necessary to ignite the fuel and power the car's engine. Faulty wiring can also cause vehicles to turn themselves off.
Sometimes, drivers can determine the source of the problem without a mechanic. They can check all the wiring and rubber hoses attached to the engine for leaks, cracks or other signs of extreme wear. They can also perform this check with the engine switched on to listen for the sounds of escaping air.Learn more in Car Parts & Maintenance
When a car won't shift into reverse or drive, there is usually a problem with the transmission, such as low transmission fluid or loose throttle cables. Transmission fluid lubricates the gears and other components of the transmission. When the car is low on this fluid, it cannot switch gears into reverse or drive.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 smell of gas in a car is the cause of a gas leak from the tank or the fuel line. This smell is present in the cab of a car because of how much fluid is stored in a vehicle and the amount of length the fuel line stretches under the cab. A fuel leak is a serious issue that is easy to notice by the scent.Full Answer >
The check gauges light on a vehicle indicates that a malfunction has occurred and the vehicle needs to be inspected, serviced or repaired. A check engine or check gauges light can indicate a loose fuel cap, low engine oil, an overheated engine temperature or a malfunction in the engine or electrical system.Full Answer >