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Old 02-18-2018, 02:30 PM   #1 (permalink)
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Default Fuel pump not pumping

I wasn’t getting fuel to my ‘90 samurai so I dropped the tank and disconnected the hoses. The fuel pump sounded like it was running so I was going to check if it was actually pumping fuel, but It was not. I’m not sure what the next step would be because this is a new fuel pump and I would think that it should be working. I read that if the fuel pump relay is bad then you should not hear any sound from the pump so this would make me think that he relay is working fine. What should my next step be?
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Old 02-18-2018, 02:41 PM   #2 (permalink)
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to the forum!

You could disconnect the line that attaches to the fuel pump right on the top of the tank and see if fuel is being pumped to that point, if no fuel there you might have a clogged filter mounted right on the pump.


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Old 02-18-2018, 02:45 PM   #3 (permalink)
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I took the hoses off all the way to the pump and still no fuel. The pump is new and the tank is new so I do not think it should be clogged. Does the fuel return line have to be hooked up for it to pump?
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Old 02-18-2018, 02:55 PM   #4 (permalink)
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First thing I would do is verify that there is voltage at the pump.
Use a volt ohm meter or a test light.
Attach test clips, one to chassis ground the other to the +12 volt side going to the pump, turn the key on and see.


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2002 Grand Vitara 2.5L 4WD 123K Valves lifters rings/bearings timing chain gears tensioners WP coils ECU
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Old 02-18-2018, 02:59 PM   #5 (permalink)
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It is getting power and it is running for 3 seconds when I turn the key to the on position
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Old 02-18-2018, 03:03 PM   #6 (permalink)
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I assume it was not possible to connect the pump power supply around the wrong way.
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Old 02-18-2018, 03:06 PM   #7 (permalink)
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Nope. What’s making me confused is why it is making noise but not pumping
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Old 02-18-2018, 03:17 PM   #8 (permalink)
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and a new tank.

Sooooooo,
were assuming there is enough fuel in the tank. . . . .


sorry had to ask.

Don

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2002 Grand Vitara 2.5L 4WD 123K Valves lifters rings/bearings timing chain gears tensioners WP coils ECU
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Old 02-18-2018, 03:20 PM   #9 (permalink)
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Haha yes there’s about 3 gallons in the tank
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Old 02-18-2018, 03:31 PM   #10 (permalink)
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Did you get the whole unit or just the actual pump.

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