![]() ![]() Find a licensed mechanic if you aren’t sure. Priming the fuel pump in your vehicle is something that anybody with even a passing interest in mechanics should have no trouble doing.īut don’t try to do this or any other repair or maintenance if you aren’t confident in your skills. This is especially true if the car has been sitting in the cold. If a car with a carburetor has been sitting for too long, the fuel pump might need to be primed. Most electric fuel pumps already have a primer built in, so you won’t even have to worry about it.īut if you have an older car, you may need to prime the fuel pump by hand after installing a new one. If you’re not sure how to prime your electric fuel pump, ask a certified auto mechanic for help.Īfter letting the fuel out of the fuel line, you should prime the car fuel pump.Find out what kind of priming system your car has by looking at the manufacturer’s information book. ![]() Some electric fuel pumps don’t need to be primed by hand because they have a built-in feature that does it for them.You can use the prime switch if your car’s engine dies or the filters get clogged up. For safety, a prime switch is also used.You won’t need to prime your electric fuel pump to run your car normally. You usually want to do this when you want to bleed your line.If necessary, re-prime the electric fuel pump. Clean your hands thoroughly with a cleaner that eliminates any fuel on them. The proper sequence is run, wait, turn to crank. Wait for the fuel rail to prime, and when you hear the fuel pump relay shut off, continue into the crank mode. ![]() Step 3: Close the Car’s Hood and Clean UpĬlose the car’s hood and clean up where you’re working. starting and diagnostics The proper method to start any EFI engine in a car or a truck is to turn the ignition key to run and no farther. You will be working near the fuel injection parts of your car, and if the car is still warm, you could quickly get burned. If you’re up to the challenge, you can use this priming method by doing the following: Step 1: First, Find the Fuel PumpĮnsure the car is turned off and sits still for at least two hours. This is hard to do because the pump is sometimes inside the gas tank. The second way involves getting access to the fuel pump itself. Method #2 Access the Fuel Pump Primer Switch
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