Low fuel pressure ???
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Elder User
Joined: Dec 2004
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From: Happy Valley, Oregon
Low fuel pressure ???
I was driving and noticed my fuel pressure on my Edge CTS was 31 PSI. Truck was running fine. No miss or sputter or anything. I have the blue spring mod. Got to my location and changed my fuel filters. Same reading. I took the hose off and hooked it to an old gauge that I had and roughly the same reading. The truck started fine after the filter change and runs fine also. No clue what is wrong. Any ideas??
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Elder User
Joined: Dec 2004
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From: Happy Valley, Oregon
Update: Well I bought a new fuel pump and installed it. That didn't change anything the fuel pressure was still 30 PSI. So my guess was broken spring or something in fuel regulator. So pulled it apart to find that the oring around the brass insert was broken. So my guess is it was allowing fuel to bypass and giving me a low pressure reading. Going to get a new blue spring kit in the morning and reinstall it and see if my pressure comes back. I am tired of smelling like diesel.
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Joined: Jun 2006
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Update: Well I bought a new fuel pump and installed it. That didn't change anything the fuel pressure was still 30 PSI. So my guess was broken spring or something in fuel regulator. So pulled it apart to find that the oring around the brass insert was broken. So my guess is it was allowing fuel to bypass and giving me a low pressure reading. Going to get a new blue spring kit in the morning and reinstall it and see if my pressure comes back. I am tired of smelling like diesel.
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Joined: Dec 2004
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From: South Weber, Utah
Update: Well I bought a new fuel pump and installed it. That didn't change anything the fuel pressure was still 30 PSI. So my guess was broken spring or something in fuel regulator. So pulled it apart to find that the oring around the brass insert was broken. So my guess is it was allowing fuel to bypass and giving me a low pressure reading. Going to get a new blue spring kit in the morning and reinstall it and see if my pressure comes back. I am tired of smelling like diesel.
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Senior User
Joined: Jun 2012
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From: Holland, NY
Sir, the scent of diesel, in my opinion, never gets old. 
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