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 about Car Parts & Maintenance
A person can not fix a bent car frame — the vehicle needs to be repaired at an automotive service center that has access to a frame straightening machine. When a vehicle is damaged during a collision, the frame of the car may bend, and in these cases, throws off its structural integrity and the ability to drive. Even if the frame looks fine, it may still be damaged and can only be fixed using precision tools.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 >
When a car jerks while changing gears, it means that the transmission is malfunctioning. There are several different reasons a transmission fails to work correctly. For example, low transmission fuel and a leak in the transmission both cause a transmission to malfunction. It is also possible that a transmission is worn out and needs to be replaced.Full Answer >
While there are many reasons for a car to idle roughly, one of the most common is a vacuum leak. Even small leaks can cause the rough idle and illuminate the check engine light. Unfortunately the problem is often difficult to find, but once it's located, it's easy to fix. Popular Mechanics recommends starting with a copy of the vehicle's vacuum diagram and highlighting each connection when checked.Full Answer >