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most electrical fuel pumps work that way. it prevents the engine from flooding. also when you run out of gas, you no longer have to crank the engine to get it started again. all you do is turn the ignition to the on and off position 5 or 6 times and the gas reaches the intake. once the engine is running, the fuel pump continues to run and feed fuel to the engine to keep it running. frank t ( a car nut )
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∙ 16y ago
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How soon does the fuel pump stop working if you run out of fuel?
About 10 seconds after the engine stops running.
When the key is in the on position should the fuel pump energize on your 1997 Tahoe?
When you turn the key foreward, the fuel pump should run for about 3 seconds then stop.
Why does the fuel pump in your 1995 Lincoln run for only 3 seconds and stop?
You don't say whether or not the car is still running. A fuel pump will only run as long as it takes to bring the fuel system up to pressure and then stop. This is normal. If the engine is not running because there is no fuel, there is either a blockage, bad pressure switch or the fuel pump itself is bad.
How to tell is its fuel filter or fuel pump?
If you turn on the ignition without starting the engine you should hear the fuel pump run for a few seconds. This is a good indication the fuel pump is good but not 100% positive. A bad fuel pump can run but not pump fuel. If you hear it for run for a few seconds just replace the fuel filter to make sure it is not clogged. If it still does not pump have a fuel pressure test run to verify the condition of the pump.
Sometimes you turn the ignition on and hear fuel pump run for a few seconds and it stops.Crank engine and it runs maybe 2 seconds. Then other times engine may run for an hour and fuel pump stops.?
Your fuel pump is going bad, or you have a loose wire.
Does engine have to run for fuel pump to run?
If the vehicle has an electric fuel pump, then no, it runs no matter if the engine is running or not, but it will only run for a few seconds unless the engine is started. However if the pump is mechanical then the engine must be running for the pump to work.
Have fuel to pump but not coming out of pump to injecters?
The fuel pump may be defective or the fuel filter may be clogged. Replace the fuel filter if you hear the pump run when you first turn on the ignition without starting the engine. It should run for a few seconds. If you do not hear the pump running, check the fuse and the fuel pump relay. If you hear it run and after replacing the fuel filter you still have no fuel, the pump is defective and must be replaced.
Will a bad fuel pump cause your car to run hot?
no a bad fuel pump will not make your run hot it will cause it not run like it should and eventually stop running at all
When turn the key on 1996 Chevy beretta hear the fuel pump run why?
Fuel pump should run for about 2 seconds every time you turn the key to the RUN position. That re-pressurizes the fuel line. Normal operation.
New fuel pump still no fuel?
Is the fuel pump actually running. Turn the ignition to the on position without starting the engine and you should hear the pump run for a few seconds. If you do not check the fuel pump fuse and fuel pump relay. If they are both good replace the fuel filter as it may be clogged. Lastly, it is possible that new fuel pump is defective.Is the fuel pump actually running. Turn the ignition to the on position without starting the engine and you should hear the pump run for a few seconds. If you do not check the fuel pump fuse and fuel pump relay. If they are both good replace the fuel filter as it may be clogged. Lastly, it is possible that new fuel pump is defective.
Is the fuel pump on a 90 Pontiac lemans supposed to come on when the key is on?
You should here the pump run for a few seconds if you just turn on the key then iT will stop. Then the pump will fire up again when you start it. ON A 1992 THE RELAY WILL ACTIVATE THE PUMP FOR 1.5 TO 2 SECOND IN THE RUN POSITION WITH THE CAR NOT RUNNING.
95 escort gt will start and run for a few seconds then die?
fuel filter plugged or fuel pump going
