![]() ![]() ![]() Leaky Fuel Injectorsįuel injectors are used to inject fuel into an engine’s combustion chamber. If you can’t hear it at all or if it sounds abnormal, you should get it looked at. If you listen near the gas tank, you should be able to hear the fuel pump as it starts up. You can also try getting someone else to try turning the car on while you listen for the fuel pump. You can spray a little starter fluid into the throttle body and try starting the engine if it starts normally at first but then cuts out soon after, this is a pretty good sign that it’s your fuel pump. There are a couple of things you can do to test if the problem is indeed being caused by your fuel pump. If your fuel economy starts going way down for no discernible reason, this can also be a sign of a bad fuel pump. Your engine might start sputtering or misfiring when you get up to speed, and you might also find it much more difficult to accelerate than you normally would. If the issue is being caused by your fuel pump, there are likely to be other symptoms you’ll notice. When the engine is cold, it needs a slightly richer air/fuel mixture to start, and a failing fuel pump might not be able to deliver enough fuel to properly start the engine in such conditions. If your fuel pump starts to fail, this can lead to issues when trying to start your car, especially during a cold start. If your fuel pump stops working completely, then your engine will receive no fuel and be unable to run. Your car’s fuel pump is the device responsible for sending fuel from your gas tank to your engine. The importance of your car’s fuel pump should be pretty obvious from the name alone. If you find that your car only starts with starting fluid but runs fine otherwise, the cause likely has to do with some element of your car’s fuel system.
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