Checking fuel pressure

Tiny
WELDERMAN62
  • MEMBER
  • 2005 NISSAN ALTIMA
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 263,000 MILES
Is there a video showing how to check the fuel pressure on the car listed above?
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Monday, April 18th, 2022 AT 4:30 PM

8 Replies

Tiny
JACOBANDNICKOLAS
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Hi,

I don't have a video for this specific vehicle. However, I have a link that explains how it's done, a video showing it being done on another vehicle, and the directions specific to your vehicle.

Here is the "how-to" link:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Here is a video showing how it is done:

https://youtu.be/peh7-pFycyc

If you look at the pics below, they are the directions specific to your vehicle. There are two methods identified. I feel method B would be easier for you, but you can make that decision. Additionally, you will need a fuel pressure gauge. If you don't have one, most auto parts stores will lend one to you.

Take a look through everything and let me know if you have questions or if I can help in any way.

Take care,

Joe

See pics below.
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Monday, April 18th, 2022 AT 8:05 PM
Tiny
WELDERMAN62
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Thanks, but I already saw that video. My car does not have a Schrader valve or a service port to test the pressure at, so I didn't know where to do it at. I put a new fuel pump on Maybe it's too high a pressure because it keeps flooding the plugs. I also replace the coolant temperature sensor, Cam shaft sensor, crankshaft sensor, new coils, new plugs, and still, it floods the plugs. Only thing l have not replaced is the fuel injectors. They all sound good when you hold a screwdriver up to them. So don't know what else to do, I guess.
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Tuesday, April 19th, 2022 AT 8:45 AM
Tiny
WELDERMAN62
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After the first start it will start every time after that and runs like a dream, so it has to be something simple but I'm not finding it.
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Tuesday, April 19th, 2022 AT 8:49 AM
Tiny
JACOBANDNICKOLAS
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Hi,

To check fuel pressure, you're right. There is no Schrader. On this vehicle, it is necessary to remove the fuel supply line, add a T between it and the fuel rail, and then the last leg of the T is where the gauge attaches.

If the spark plugs are wet, it could be an injector or injectors. However, I wouldn't think all would fail at the same time. Are all spark plugs getting wet? If it is only one or two, an injector may be leaking causing the issue. However, to determine if that is the issue, we would either need to check fuel pressure drop off with a gauge or remove the injectors and test them.

Here is a link showing how to test an injector:

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

If you look at the attached pic, I added a pressure test kit. I circled what you need and highlighted where the Schrader is located. Basically, it is spliced into the fuel supply.

Let me know if that helps or if you have other questions.

Take care,

Joe

See pic below.
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Tuesday, April 19th, 2022 AT 4:53 PM
Tiny
WELDERMAN62
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Thanks, I will try this.
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Thursday, April 21st, 2022 AT 10:26 AM
Tiny
JACOBANDNICKOLAS
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Hi,

You are very welcome. Let me know how things turn out for you or if I can help in any way.

Take care,

Joe
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Thursday, April 21st, 2022 AT 4:31 PM
Tiny
WELDERMAN62
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Hey, I was just wondering do you have to take off the intake manifold off to take the fuel injectors off of the car listed above?
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Saturday, April 23rd, 2022 AT 9:50 AM
Tiny
JACOBANDNICKOLAS
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Hi,

Yes and no. You have to remove what is called the intake collector which is the upper portion of the intake. The actual intake manifold that bolts to the engine is not removed.

If you look at pic 1 below, I highlighted the collector, so you have a better understanding.

The remaining pics are the directions for removing the injectors.

Let me know if this helps.

Take care,

Joe

See pics below.
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Saturday, April 23rd, 2022 AT 8:30 PM

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