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Thread: fuel pressure?

  1. #1

    Default fuel pressure?

    Hey all! I'm new to this forum and have a question i can't seem to find an answer. I have a 91 chevy with the 5.7 and think i'm having fuel issues. Everything i have found says to check the fuel pressure. Ok...what's the acceptable reading for this year model?

  2. #2
    Sr. Engineer
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    Default

    I believe it is 9 - 14 PSI

    But I am sure murdog or another can confirm it.

  3. #3

    Default

    Have you changed your fuel filter? Your truck is fuel injected, I believe the fuel pressure should be around 40lbs.

  4. #4
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    murdog94's Avatar
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    Acceptable is anything over 12lbs... And you take the reading before the fuel goes into the fuel filter. (take the fitting off the in side of the filter and test there) and while your down there it is to easy to take the $7 fuel filter and change that at the same time.
    Also what is the fault that you are having??
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  5. #5

    Default

    Thanks for the replies. Turned out to be the fuel filter

  6. #6
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    Sweet.
    Got to love easy fixes like that.

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