Help with fuel system

Asked by Mary Jan 06, 2016 at 09:54 PM about the 2003 Nissan Frontier

Question type: Maintenance & Repair

My 2003 Nissan Frontier stopped getting gas to the fuel injectors.  We have replaced the fuel pump, the sending unit, the fuel filter and still do not have fuel coming to the injectors.  We have fuel past the filter, have tried to blow the lines. For some reason, it seems like the fuel is pumping back into the gas tank.  Can you tell me what might be the problem.

7 Answers

69,965

have you tried blowing out the line...the pump is pushing fuel right???

8 people found this helpful.
143,545

If you have fuel pressure at filter and have verified pressure,may need to check the fuel pressure regulator on fuel rail,may be bad.

9 people found this helpful.
143,545

Diagram of v6, but 4cyl have same regulator.

6 people found this helpful.
170

I have another question for 2004 Frontier when you first turn the key on the pump sends gas to the fuel rail but stops just after a couple ounces it continues to run the pump that is but no more fuel why

17 people found this helpful.
20

I'm trying to find my fuel realtor on 2000 nassanfrontier 3.3 v6

2 people found this helpful.
10

The filter is on the crossmember, where is the regulator

1 people found this helpful.
30

Trying to locate fuel filter on 2008 frontier 4x 4 door. Internet says it is on the outside of frame rail on passenger side before the rear wheel. I do not see any fuel line on the passenger side....any suggestions of diagram you can share?

3 people found this helpful.

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