Fuel pressure testing connection

SCOTTY56

MEMBER
2005 CHRYSLER PACIFICA
128,000 MILES

I am wanting to do a fuel pressure test for my 2005 pacifica and I want to know where to connect a fuel press test gage. Is there a fuel rail test port if not do I have to tap into the fuel line and if so where is the safest place to tap into?

Monday, August 26th, 2013 AT 2:11 PM

4 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

There is no port you will need to disconnect the fuel line at the rail and install a tee from the fuel gauge set.

Here is a guide to help you see what you need to do.

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

400 kpa ±34 kpa (58 psi ±5 psi )

Here are some diagrams to show you where to tap in too. (below)

Please let us know what happens.

Cheers, Ken

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Wednesday, October 18th, 2017 AT 2:40 PM

06PAC

MEMBER
3 POSTS
2006 CHRYSLER PACIFICA

Where do you take a fuel pressure reading on a 2006 Chrysler pacifica with the 3.5? I'm unable to locate a tap on the fuel injection rails. What should the fuel pressure reading be?

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Wednesday, October 18th, 2017 AT 2:41 PM (Merged)

MMPRINCE4000

MECHANIC
8,548 POSTS

You need a special test kit to check fuel pressure this needs to be connected between the engine fuel rail and the frame, Then start the engine the pressure should be 55-65 pounds

Let us know how it goes, we are here to help

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Wednesday, October 18th, 2017 AT 2:41 PM (Merged)

WRENCHTECH

MECHANIC
20,761 POSTS

These engines do not have a service port on either the fuel rail or the incoming line. The fuel gauge kits usually have adapters to hook right into the line to test.
Here is the spec FUEL SYSTEM PRESSURE - 400 kpa ±34 kpa (58 psi ±5 psi )

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Wednesday, October 18th, 2017 AT 2:41 PM (Merged)