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Electric fuel pump--Usually always when the ignition is on. Mechanical fuel pump--When the engine is turning.
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∙ 16y ago
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Should the fule pump continue to run while you drive?
Your fuel pump should ALWAYS run while you drive, because it's electric and if the fuel pump wasn't running the gas wouldn't move through the car.
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.
Why does fuel pump run but not pump fuel?
Could be,out of gas, pick-up sock in tank plugged, pump motor may run but the pump itself is bad,
Bought a gm tbi motor it has a blank plate where the fuel pump is does the cam have a lobe for a mechanical fuel pump?
Yes it does. But you can not run a mechanical pump on a fuel injected engine. It will not pump enough fuel to run the engine.
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.
Could a car still fire up and run with a bad fuel pump?
No, but it could run with a weak fuel pump.
What happens if fuel relay goes bad?
If the fuel pump relay is defective the fuel pump will not run.
What would make the fuel pump not run on a 1988 F250?
Blown fuse, defective fuel pump relay, or defective fuel pump.
Why doesn't a 2000 silverado fuel pump run after a new fuel pump was installed?
Blown fuse or bad fuel pump relay.
What are the symptoms of a bad fuel pump relay on a 2002 Oldsmobile Intrigue?
Fuel pump will not run.
How do you bypass a fuel pump on a 94 fiat uno?
If you bypass the fuel pump the car will not run.
Where is fuel pump reset on a 98 Chrysler Cirrus?
There isn't a fuel pump reset switch,if the pump doesn't run then it is either a bad fuel pump or relay
