If an engine stalls upon acceleration, one likely cause is a dirty fuel filter. Not replacing the filter according to the manufacturer's recommendation allows debris from fuel to build up and plug it. This causes the car to operate on a lean fuel supply and render it unable to meet the demand of pressing the accelerator pedal, according to Carsut.Continue Reading
Fuel injectors become dirty and stop operating normally over time. Varnish from gasoline closes the orifice in the fuel injector, so fuel is no longer able to pass properly. If fuel filters continue to foul after cleaning, the problem often stems from a fuel tank with accumulated debris from cheap gasoline.
Problems with plugs, plug wires and spark plugs also cause cars to stall. If the plugs are new but the car continues to hesitate, the problem is likely in the plug wires. If replacing both plugs and wires does not cure the situation, it is likely in the ignition system.
Most newer vehicles have onboard diagnostic systems. Under normal circumstances, the hesitation upon acceleration causes the check engine light to illuminate. The diagnostic system stores a code indicating the cause of the stall. Have the problem checked using a scan tool. These systems prevent the unnecessary replacement of parts in order to troubleshoot a problem.Learn more about Car Parts & Maintenance
The fuel filter is generally located underneath the chassis of the car or mounted on the firewall of the engine compartment. The exact location of the fuel filter will vary according to each vehicle, but a factory service manual will be able to show its exact location.Full Answer >
The purpose of a car's air filter is to prevent dirt and other particles from entering the fuel system or engine. Air filters also prevent particles from entering the air conditioner system.Full Answer >
If a car shakes when it is idling, the cause is usually something happening with the engine, such as needing new spark plugs. The spark plugs provide an electrical arc that ignites the gasoline vapor in the vehicle to push the piston and provide power to move the car down the road. Even though the vehicle is just idling, it takes power to keep the engine running smoothly.Full Answer >
Some helpful tips to maintain a Toyota Rav4 include checking tire pressure to improve fuel efficiency, and replacing the air filter to improve acceleration time. According to Toyota, basic car maintenance not only increases vehicle efficiency, but also retains the car's value.Full Answer >