Fuel pump pressure up to about 5 PSI?

CBOURBEAU32

MEMBER
2005 CHEVROLET COLORADO
3.5L
5 CYL
4WD
AUTOMATIC
172,000 MILES

Hello, when you turn the key on the fuel pump pressure's up to about 5 PSI and acts like it's going to pressure up more but then cycles down. When you cycle the key that's all you get is about 3 seconds of fuel pump and then it cycles

Saturday, February 7th, 2026 AT 5:04 AM

2 Replies

KEN L

MASTER CERTIFIED MECHANIC
54,778 POSTS

Yep, this is common when the fuel pump goes out or you have a clogged fuel filter, you will need a new one so change the filter first and if that does help the pump is next.

You will need to drain the fuel and remove the tank, do not remove the tank with gas in it, here is a video on how to drain the fuel so you can get started.

https://www.youtube.com/watch?v=r40nkKkUd8k

Here is the location of the filter. Check out the images (below). Please let us know what happens.

Image (Click to make bigger)

Was this

answer

helpful?

Yes

No

Saturday, February 7th, 2026 AT 9:37 AM

CBOURBEAU32

MEMBER
2 POSTS

I sent an email earlier about the solenoid issue and that's the error code I got and I'll send you a screenshot of the error code. We are now in the process of removing the fuel pump assembly and draining the tank we already have purchased a fuel filter. So please let me know what the next steps are especially concerning that solenoid I get the code on the solenoid so I don't know if I need to replace it or if it can be bypassed since it's an older vehicle and probably just a government regulation emission thing

Image (Click to make bigger)