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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.
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∙ 11y ago
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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.
Will a car start if the fuel pump has gone out?
No, of course not. The fuel pump supplies fuel to the engine. The engine will not run without a supply of fuel.
Does the fuel pump always run?
Electric fuel pump--Usually always when the ignition is on. Mechanical fuel pump--When the engine is turning.
Would the car needing a new fuel pump cause the car to not run?
yes if you need new fuel pump, the engine is not getting fuel. therefore no fuel equals engine wont run
Does the fuel pump on a 1994 Ford Escort constantly run while the car is on?
If the key is in the on position and the engine is not running, the fuel pump is off. If the engine is running then the fuel pump is also. During the start cycle the pump will only run for 3 seconds unless the engine starts.
Does your 1994 Camry need a fuel pump?
Yes. Without a fuel pump the engine will not be supplied with any fuel and it will not run.
Why isn't the car starting after replacing the fuel pump?
Your new fuel pump is apparently defective. A fuel pump is required to supply fuel to the engine, and the engine cannot run (and of course not start) without a supply of fuel.
Why would the fuel pump on a 1992 Aerostar run continuously?
As long as the engine is running, the fuel pump is running.
Do the fuel pump activate every time you start the car?
Yes, without a fuel pump supplying fuel the engine will not run.
What happens when fuel pump relay switch goes out Plymouth grand voyager 1989?
fuel pump will not run... no fuel to the engine.
What are the symptoms of a bad fuel pump on a Infinity J30?
A bad fuel pump will hinder the fuel supply to the engine. The engine can run rough with an inconsistent supply of fuel, or it will completely shut off.
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.
