After replacing the fuel pump it will not stay running

Tiny
AMANDAMARIE363
  • MEMBER
  • 2008 GMC SIERRA
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 176,000 MILES
Replaced the fuel pump in my truck now it doesn't seem to be getting power. Starts but shuts off. Scanning says maybe the fuel pump control module replaced that and still not getting power fuel pump doesn't kick on when key is in the on position.
Tuesday, June 1st, 2021 AT 5:32 PM

5 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,068 POSTS
Hi,

If possible, could you let me know the code you are getting?

As far as the fuel pressure control module, FPCM, it should set a code if bad. That's why I'm asking,

I am going to provide the diagnostics for the FPCM for your review. If the code you are getting isn't indicated in the diagnostics, let me know what it is.

The diagnostics are attached below.

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

Take care,

Joe

See pics below.
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Tuesday, June 1st, 2021 AT 7:34 PM
Tiny
AMANDAMARIE363
  • MEMBER
  • 3 POSTS
Just realized I I accidentally put 2008 it's a 2007. I apologize.
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Wednesday, June 2nd, 2021 AT 8:21 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,068 POSTS
Hi,

No problem whatsoever. I attached the diagnostics for the 2007 below. Some of the things are the same.

Let me know if this helps. Also, if you could provide the code or codes that you got, let me know them as well.

Take care,

Joe

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Wednesday, June 2nd, 2021 AT 4:49 PM
Tiny
AMANDAMARIE363
  • MEMBER
  • 3 POSTS
I got a P069E, P025A, Fuel Pump Control module said to check the wiring to the module before ordering it. I tested the wires not getting anything to the hot or control wires on the FPCM. Just checked fuel pump pressure don't hear it but Just checked it with a gauge it works getting 54 PSI.
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Wednesday, June 2nd, 2021 AT 6:03 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,068 POSTS
Hi,

The first thing to check if there is no power to the module is the fuel system control module fuse. See pic 1.

If you look at pic 2, it shows the underhood fuse box. I highlighted fuse 21. In addition to checking the fuse, make sure there is power to and from it. Here is a link explaining how it's done:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Let me know what you find.

Take care,

Joe

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Wednesday, June 2nd, 2021 AT 8:36 PM

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