Where do you connect the fuel pressure gauge to check the fuel pressure on a 2001 BMW X5 4.4i? Is it the needle valve on the stainless steel tube on top of the engine leading to the fuel injectors?

Asked by Brettwesley123 Jul 21, 2015 at 04:00 AM about the 2001 BMW X5 4.4i AWD

Question type: Maintenance & Repair

I need to check the fuel pressure on my 2001 BMW X5 4.4i. I think it is supposed to be
between 45 - 50 psi. I do not know where to connect the fuel pressure gauge. I replaced
the fuel filter but it still will not turn over.

3 Answers

10

Under the hood under the plastic cover there's a aluminum colored bar right on the top above your spark plugs on the top side of that squared bar (fuel rail) you will see a spot were you can screw on the pressure gauge to it also if you push it in the center while starting you will know if fuel is coming up that far it will shoot out

1 people found this helpful.
110

All fuel injected engines have a fuel rail, and at either end you will find a very familiar schrader valve which is the same as is used in your wheels to inflate tires. Put a standard air pressure gauge on it and you should see 40 to 45 lbs. pressure which is in normal range.

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